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[PATCH 06/12] add wal_compression_method: zstd
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* [PATCH 06/12] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 6d34243dca..24824ba6c9 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --with-lz4              build with LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8703,6 +8712,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13551,6 +13691,29 @@ done
 
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index e54e2fb632..5840085177 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1430,6 +1445,17 @@ if test "$with_lz4" = yes; then
        [AC_CHECK_HEADERS(lz4.h, [], [AC_MSG_ERROR([lz4.h header file is required for LZ4])])])
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 1f21e96922..429a1d44d9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 23f5bdc335..a745ea11f5 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 2a2bccbe5c..0fdf426dc3 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index d873c177cb..a96c580ccb 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -905,6 +905,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index ea8ed4be30..094e16deda 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -487,6 +487,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--45Z9DzgjV8m4Oswq--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 06/12] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 6d34243dca..24824ba6c9 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --with-lz4              build with LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8703,6 +8712,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13551,6 +13691,29 @@ done
 
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index e54e2fb632..5840085177 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1430,6 +1445,17 @@ if test "$with_lz4" = yes; then
        [AC_CHECK_HEADERS(lz4.h, [], [AC_MSG_ERROR([lz4.h header file is required for LZ4])])])
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 1f21e96922..429a1d44d9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 23f5bdc335..a745ea11f5 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 2a2bccbe5c..0fdf426dc3 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index d873c177cb..a96c580ccb 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -905,6 +905,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index ea8ed4be30..094e16deda 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -487,6 +487,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--45Z9DzgjV8m4Oswq--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH v9 7/9] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

TODO: 9ca40dcd4d0cad43d95a9a253fafaa9a9ba7de24
---
 configure                                     | 217 ++++++++++++++++++
 configure.ac                                  |  33 +++
 doc/src/sgml/config.sgml                      |   2 +-
 doc/src/sgml/installation.sgml                |  19 ++
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  18 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/access/xlogrecord.h               |   5 +-
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 src/tools/msvc/config_default.pl              |   1 +
 12 files changed, 315 insertions(+), 5 deletions(-)

diff --git a/configure b/configure
index 7038b0727c..72bbd719dc 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8715,6 +8724,147 @@ fi
   done
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  # We only care about -I, -D, and -L switches;
+  # note that -lzstd will be added by AC_CHECK_LIB below.
+  for pgac_option in $ZSTD_CFLAGS; do
+    case $pgac_option in
+      -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";;
+    esac
+  done
+  for pgac_option in $ZSTD_LIBS; do
+    case $pgac_option in
+      -L*) LDFLAGS="$LDFLAGS $pgac_option";;
+    esac
+  done
+fi
+
 #
 # Assignments
 #
@@ -12878,6 +13028,56 @@ fi
 
 fi
 
+if test "$with_zstd" = yes ; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ZSTD_compress in -lzstd" >&5
+$as_echo_n "checking for ZSTD_compress in -lzstd... " >&6; }
+if ${ac_cv_lib_zstd_ZSTD_compress+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lzstd  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char ZSTD_compress ();
+int
+main ()
+{
+return ZSTD_compress ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_zstd_ZSTD_compress=yes
+else
+  ac_cv_lib_zstd_ZSTD_compress=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_zstd_ZSTD_compress" >&5
+$as_echo "$ac_cv_lib_zstd_ZSTD_compress" >&6; }
+if test "x$ac_cv_lib_zstd_ZSTD_compress" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBZSTD 1
+_ACEOF
+
+  LIBS="-lzstd $LIBS"
+
+else
+  as_fn_error $? "library 'zstd' is required for ZSTD support" "$LINENO" 5
+fi
+
+fi
+
 # Note: We can test for libldap_r only after we know PTHREAD_LIBS
 if test "$with_ldap" = yes ; then
   _LIBS="$LIBS"
@@ -13600,6 +13800,23 @@ done
 
 fi
 
+if test "$with_zstd" = yes; then
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index cb0261f179..c348a3ee91 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1011,6 +1011,31 @@ if test "$with_lz4" = yes; then
   done
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  # We only care about -I, -D, and -L switches;
+  # note that -lzstd will be added by AC_CHECK_LIB below.
+  for pgac_option in $ZSTD_CFLAGS; do
+    case $pgac_option in
+      -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";;
+    esac
+  done
+  for pgac_option in $ZSTD_LIBS; do
+    case $pgac_option in
+      -L*) LDFLAGS="$LDFLAGS $pgac_option";;
+    esac
+  done
+fi
+
 #
 # Assignments
 #
@@ -1285,6 +1310,10 @@ if test "$with_lz4" = yes ; then
   AC_CHECK_LIB(lz4, LZ4_compress_default, [], [AC_MSG_ERROR([library 'lz4' is required for LZ4 support])])
 fi
 
+if test "$with_zstd" = yes ; then
+  AC_CHECK_LIB(zstd, ZSTD_compress, [], [AC_MSG_ERROR([library 'zstd' is required for ZSTD support])])
+fi
+
 # Note: We can test for libldap_r only after we know PTHREAD_LIBS
 if test "$with_ldap" = yes ; then
   _LIBS="$LIBS"
@@ -1443,6 +1472,10 @@ if test "$with_lz4" = yes; then
   AC_CHECK_HEADERS(lz4.h, [], [AC_MSG_ERROR([lz4.h header file is required for LZ4])])
 fi
 
+if test "$with_zstd" = yes; then
+  AC_CHECK_HEADERS(zstd.h, [], [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index df5ff70d91..ee4c44fb7f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3141,7 +3141,7 @@ include_dir 'conf.d'
         <xref linkend="guc-full-page-writes"/> is on or during a base backup.
         A compressed page image will be decompressed during WAL replay.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>off</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/doc/src/sgml/installation.sgml b/doc/src/sgml/installation.sgml
index c7673a4dc8..3e985bbd05 100644
--- a/doc/src/sgml/installation.sgml
+++ b/doc/src/sgml/installation.sgml
@@ -275,6 +275,14 @@ su - postgres
      </para>
     </listitem>
 
+    <listitem>
+     <para>
+      The <productname>ZSTD</productname> library can be used to enable
+      compression using that method; see
+      <xref linkend="guc-wal-compression"/>.
+     </para>
+    </listitem>
+
     <listitem>
      <para>
       To build the <productname>PostgreSQL</productname> documentation,
@@ -986,6 +994,17 @@ build-postgresql:
        </listitem>
       </varlistentry>
 
+      <varlistentry>
+       <term><option>--with-zstd</option></term>
+       <listitem>
+        <para>
+         Build with <productname>ZSTD</productname> compression support.
+         This enables use of <productname>ZSTD</productname> for
+         compression of WAL data.
+        </para>
+       </listitem>
+      </varlistentry>
+
       <varlistentry>
        <term><option>--with-ssl=<replaceable>LIBRARY</replaceable></option>
        <indexterm>
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index a8794a941a..96f497d5d6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -904,6 +911,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index e44817fece..1b13d1f660 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -42,6 +42,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -83,6 +87,10 @@ const struct config_enum_entry wal_compression_options[] = {
 	{"lz4", WAL_COMPRESSION_LZ4, false},
 #endif
 
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
+#endif
+
 	{NULL, 0, false}
 };
 
@@ -1639,6 +1647,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 728acef953..818b26faad 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -218,7 +218,7 @@
 #full_page_writes = on			# recover from partial page writes
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
-#wal_compression = off			# enable compression of full-page writes: off, pglz, zlib, lz4
+#wal_compression = off			# enable compression of full-page writes: off, pglz, zlib, lz4, zstd
 #wal_init_zero = on			# zero-fill new WAL files
 #wal_recycle = on			# recycle WAL files
 #wal_buffers = -1			# min 32kB, -1 sets based on shared_buffers
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0287592cd4..1da965a708 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -331,6 +331,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/access/xlogrecord.h b/src/include/access/xlogrecord.h
index abb42b364d..84ffb17596 100644
--- a/src/include/access/xlogrecord.h
+++ b/src/include/access/xlogrecord.h
@@ -147,12 +147,13 @@ typedef struct XLogRecordBlockImageHeader
 #define	BKPIMAGE_APPLY		0x02	/* page image should be restored during
 									 * replay */
 #define BKPIMAGE_COMPRESS_METHOD1	0x04	/* bits to encode compression method */
-#define BKPIMAGE_COMPRESS_METHOD2	0x08	/* 0=none, 1=pglz, 2=zlib, 3=lz4 */
+#define BKPIMAGE_COMPRESS_METHOD2	0x08	/* 0=none, 1=pglz, 2=zlib, 3=lz4, 4=zstd */
+#define BKPIMAGE_COMPRESS_METHOD3	0x10
 
 /* How many bits to shift to extract compression */
 #define	BKPIMAGE_COMPRESS_OFFSET_BITS	2
 /* How many bits are for compression */
-#define	BKPIMAGE_COMPRESS_BITS			2
+#define	BKPIMAGE_COMPRESS_BITS			3
 /* Extract the compression from the bimg_info */
 #define	BKPIMAGE_COMPRESSION(info)		((info >> BKPIMAGE_COMPRESS_OFFSET_BITS) & ((1<<BKPIMAGE_COMPRESS_BITS) - 1))
 #define	BKPIMAGE_IS_COMPRESSED(info)	(BKPIMAGE_COMPRESSION(info) != 0)
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 783b8fc1ba..bb44ef2a9d 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -917,6 +917,9 @@
 /* Define to 1 to build with LZ4 support. (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index a7b8f720b5..28ff10f09f 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -494,6 +494,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
diff --git a/src/tools/msvc/config_default.pl b/src/tools/msvc/config_default.pl
index 460c0375d4..b8a1aac3c2 100644
--- a/src/tools/msvc/config_default.pl
+++ b/src/tools/msvc/config_default.pl
@@ -26,6 +26,7 @@ our $config = {
 	xslt      => undef,    # --with-libxslt=<path>
 	iconv     => undef,    # (not in configure, path to iconv)
 	zlib      => undef     # --with-zlib=<path>
+	zstd      => undef     # --with-zstd=<path>
 };
 
 1;
-- 
2.17.0


--neYutvxvOLaeuPCA
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="v9-0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH v7 6/9] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

TODO: 9ca40dcd4d0cad43d95a9a253fafaa9a9ba7de24
---
 configure                                     | 217 ++++++++++++++++++
 configure.ac                                  |  33 +++
 doc/src/sgml/config.sgml                      |   2 +-
 doc/src/sgml/installation.sgml                |  19 ++
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 src/tools/msvc/config_default.pl              |   1 +
 12 files changed, 312 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index e9b98f442f..9d44f6acc7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --with-lz4              build with LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8713,6 +8722,147 @@ fi
   done
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  # We only care about -I, -D, and -L switches;
+  # note that -lzstd will be added by AC_CHECK_LIB below.
+  for pgac_option in $ZSTD_CFLAGS; do
+    case $pgac_option in
+      -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";;
+    esac
+  done
+  for pgac_option in $ZSTD_LIBS; do
+    case $pgac_option in
+      -L*) LDFLAGS="$LDFLAGS $pgac_option";;
+    esac
+  done
+fi
+
 #
 # Assignments
 #
@@ -12876,6 +13026,56 @@ fi
 
 fi
 
+if test "$with_zstd" = yes ; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ZSTD_compress in -lzstd" >&5
+$as_echo_n "checking for ZSTD_compress in -lzstd... " >&6; }
+if ${ac_cv_lib_zstd_ZSTD_compress+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lzstd  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char ZSTD_compress ();
+int
+main ()
+{
+return ZSTD_compress ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_zstd_ZSTD_compress=yes
+else
+  ac_cv_lib_zstd_ZSTD_compress=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_zstd_ZSTD_compress" >&5
+$as_echo "$ac_cv_lib_zstd_ZSTD_compress" >&6; }
+if test "x$ac_cv_lib_zstd_ZSTD_compress" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBZSTD 1
+_ACEOF
+
+  LIBS="-lzstd $LIBS"
+
+else
+  as_fn_error $? "library 'zstd' is required for ZSTD support" "$LINENO" 5
+fi
+
+fi
+
 # Note: We can test for libldap_r only after we know PTHREAD_LIBS
 if test "$with_ldap" = yes ; then
   _LIBS="$LIBS"
@@ -13598,6 +13798,23 @@ done
 
 fi
 
+if test "$with_zstd" = yes; then
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index 3b42d8bdc9..f10c33785e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1011,6 +1011,31 @@ if test "$with_lz4" = yes; then
   done
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  # We only care about -I, -D, and -L switches;
+  # note that -lzstd will be added by AC_CHECK_LIB below.
+  for pgac_option in $ZSTD_CFLAGS; do
+    case $pgac_option in
+      -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";;
+    esac
+  done
+  for pgac_option in $ZSTD_LIBS; do
+    case $pgac_option in
+      -L*) LDFLAGS="$LDFLAGS $pgac_option";;
+    esac
+  done
+fi
+
 #
 # Assignments
 #
@@ -1285,6 +1310,10 @@ if test "$with_lz4" = yes ; then
   AC_CHECK_LIB(lz4, LZ4_compress_default, [], [AC_MSG_ERROR([library 'lz4' is required for LZ4 support])])
 fi
 
+if test "$with_zstd" = yes ; then
+  AC_CHECK_LIB(zstd, ZSTD_compress, [], [AC_MSG_ERROR([library 'zstd' is required for ZSTD support])])
+fi
+
 # Note: We can test for libldap_r only after we know PTHREAD_LIBS
 if test "$with_ldap" = yes ; then
   _LIBS="$LIBS"
@@ -1443,6 +1472,10 @@ if test "$with_lz4" = yes; then
   AC_CHECK_HEADERS(lz4.h, [], [AC_MSG_ERROR([lz4.h header file is required for LZ4])])
 fi
 
+if test "$with_zstd" = yes; then
+  AC_CHECK_HEADERS(zstd.h, [], [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index f2209f5df0..da4d66ec31 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3148,7 +3148,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/doc/src/sgml/installation.sgml b/doc/src/sgml/installation.sgml
index 7c8cdac25a..2e1cd2de37 100644
--- a/doc/src/sgml/installation.sgml
+++ b/doc/src/sgml/installation.sgml
@@ -275,6 +275,14 @@ su - postgres
      </para>
     </listitem>
 
+    <listitem>
+     <para>
+      The <productname>ZSTD</productname> library can be used to enable
+      compression using that method; see
+      <xref linkend="guc-wal-compression-method"/>.
+     </para>
+    </listitem>
+
     <listitem>
      <para>
       To build the <productname>PostgreSQL</productname> documentation,
@@ -986,6 +994,17 @@ build-postgresql:
        </listitem>
       </varlistentry>
 
+      <varlistentry>
+       <term><option>--with-zstd</option></term>
+       <listitem>
+        <para>
+         Build with <productname>ZSTD</productname> compression support.
+         This enables use of <productname>ZSTD</productname> for
+         compression of WAL data.
+        </para>
+       </listitem>
+      </varlistentry>
+
       <varlistentry>
        <term><option>--with-ssl=<replaceable>LIBRARY</replaceable></option>
        <indexterm>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 999896487e..e31ce1c2a6 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 30804e8cd5..cc7fd99a8d 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 6421ddbde8..5b4ef691af 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -219,7 +219,7 @@
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_init_zero = on			# zero-fill new WAL files
 #wal_recycle = on			# recycle WAL files
 #wal_buffers = -1			# min 32kB, -1 sets based on shared_buffers
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index fc57ea728e..d70b95f69c 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 783b8fc1ba..bb44ef2a9d 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -917,6 +917,9 @@
 /* Define to 1 to build with LZ4 support. (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 3c5fe5dddc..d7da5110cf 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -494,6 +494,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
diff --git a/src/tools/msvc/config_default.pl b/src/tools/msvc/config_default.pl
index 460c0375d4..b8a1aac3c2 100644
--- a/src/tools/msvc/config_default.pl
+++ b/src/tools/msvc/config_default.pl
@@ -26,6 +26,7 @@ our $config = {
 	xslt      => undef,    # --with-libxslt=<path>
 	iconv     => undef,    # (not in configure, path to iconv)
 	zlib      => undef     # --with-zlib=<path>
+	zstd      => undef     # --with-zstd=<path>
 };
 
 1;
-- 
2.17.0


--JYK4vJDZwFMowpUq
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="v7-0007-Default-to-LZ4.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  18 +-
 src/backend/access/transam/xlogreader.c       |  15 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 231 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 3c15286bd8..4591e476c6 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -48,10 +48,17 @@
 #define LZ4_MAX_BLCKSZ		0
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#define ZSTD_MAX_BLCKSZ		ZSTD_COMPRESSBOUND(BLCKSZ)
+#else
+#define ZSTD_MAX_BLCKSZ		0
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ		PGLZ_MAX_OUTPUT(BLCKSZ)
 
-#define COMPRESS_BUFSIZE	Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ)
+#define COMPRESS_BUFSIZE	Max(Max(Max(PGLZ_MAX_BLCKSZ, ZLIB_MAX_BLCKSZ), LZ4_MAX_BLCKSZ), ZSTD_MAX_BLCKSZ)
 
 /*
  * For each block reference registered with XLogRegisterBuffer, we fill in
@@ -906,6 +913,15 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, COMPRESS_BUFSIZE, source, orig_len,
+				ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+			len = -1;
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 97165f1bb1..0f9d522087 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1549,6 +1553,7 @@ struct walcompression walmethods[] = {
 	{"pglz",	WAL_COMPRESSION_PGLZ},
 	{"zlib",	WAL_COMPRESSION_ZLIB},
 	{"lz4",		WAL_COMPRESSION_LZ4},
+	{"zstd",	WAL_COMPRESSION_ZSTD},
 };
 
 /*
@@ -1621,6 +1626,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index b908fa48de..fa8146645d 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -337,6 +337,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--jozmn01XJZjDjM3N
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 7/8] add wal_compression_method=zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                               | 163 ++++++++++++++++++++++++
 configure.ac                            |  26 ++++
 src/backend/access/transam/xlog.c       |   3 +
 src/backend/access/transam/xloginsert.c |  20 +++
 src/backend/access/transam/xlogreader.c |  15 +++
 src/include/access/xlog_internal.h      |   1 +
 src/include/pg_config.h.in              |   3 +
 src/tools/msvc/Solution.pm              |   1 +
 8 files changed, 232 insertions(+)

diff --git a/configure b/configure
index 3afa1e87e3..c7c4c951a7 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with zstd support
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..abac4b28f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with zstd support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index f33355e44a..f2749ebf45 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 38ac5f9e94..852e5ef7af 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,22 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ,
+				source, orig_len, ZSTD_CLEVEL_DEFAULT);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index 920c47e4d7..6ce2fbfb13 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1619,6 +1625,15 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ, ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 0993de784e..30f663f448 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ = 0,
 	WAL_COMPRESSION_ZLIB = 1,
 	WAL_COMPRESSION_LZ4 = 2,
+	WAL_COMPRESSION_ZSTD = 3,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..7dfa0f31f6 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -307,6 +307,7 @@ sub GenerateFiles
 		HAVE_LIBXML2                                => undef,
 		HAVE_LIBXSLT                                => undef,
 		HAVE_LIBZ                   => $self->{options}->{zlib} ? 1 : undef,
+		HAVE_LIBZSTD                => $self->{options}->{zstd} ? 1 : undef,
 		HAVE_LINK                   => undef,
 		HAVE_LOCALE_T               => 1,
 		HAVE_LONG_INT_64            => undef,
-- 
2.17.0


--f0KYrhQ4vYSV2aJu--





^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8d76be00c1..81e23418b2 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13559,6 +13699,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index bfcdc88be0..d6f6349067 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1436,6 +1451,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3657f74de9..307eee6626 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--XsQoSWH+UP9D9v3l
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* [PATCH 07/10] add wal_compression_method: zstd
@ 2021-03-12 20:43 Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Justin Pryzby @ 2021-03-12 20:43 UTC (permalink / raw)

---
 configure                                     | 163 ++++++++++++++++++
 configure.ac                                  |  26 +++
 doc/src/sgml/config.sgml                      |   2 +-
 src/backend/access/transam/xlog.c             |   3 +
 src/backend/access/transam/xloginsert.c       |  19 ++
 src/backend/access/transam/xlogreader.c       |  16 ++
 src/backend/utils/misc/postgresql.conf.sample |   2 +-
 src/include/access/xlog_internal.h            |   1 +
 src/include/pg_config.h.in                    |   3 +
 src/tools/msvc/Solution.pm                    |   1 +
 10 files changed, 234 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 3afa1e87e3..20c6e08c02 100755
--- a/configure
+++ b/configure
@@ -699,6 +699,9 @@ with_gnu_ld
 LD
 LDFLAGS_SL
 LDFLAGS_EX
+ZSTD_LIBS
+ZSTD_CFLAGS
+with_zstd
 LZ4_LIBS
 LZ4_CFLAGS
 with_lz4
@@ -868,6 +871,7 @@ with_libxslt
 with_system_tzdata
 with_zlib
 with_lz4
+with_zstd
 with_gnu_ld
 with_ssl
 with_openssl
@@ -897,6 +901,8 @@ XML2_CFLAGS
 XML2_LIBS
 LZ4_CFLAGS
 LZ4_LIBS
+ZSTD_CFLAGS
+ZSTD_LIBS
 LDFLAGS_EX
 LDFLAGS_SL
 PERL
@@ -1576,6 +1582,7 @@ Optional Packages:
                           use system time zone data in DIR
   --without-zlib          do not use Zlib
   --without-lz4           build without LZ4 support
+  --with-zstd             build with Zstd compression library
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-ssl=LIB          use LIB for SSL/TLS support (openssl)
   --with-openssl          obsolete spelling of --with-ssl=openssl
@@ -1605,6 +1612,8 @@ Some influential environment variables:
   XML2_LIBS   linker flags for XML2, overriding pkg-config
   LZ4_CFLAGS  C compiler flags for LZ4, overriding pkg-config
   LZ4_LIBS    linker flags for LZ4, overriding pkg-config
+  ZSTD_CFLAGS C compiler flags for ZSTD, overriding pkg-config
+  ZSTD_LIBS   linker flags for ZSTD, overriding pkg-config
   LDFLAGS_EX  extra linker flags for linking executables only
   LDFLAGS_SL  extra linker flags for linking shared libraries only
   PERL        Perl program
@@ -8705,6 +8714,137 @@ fi
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build with zstd support" >&5
+$as_echo_n "checking whether to build with zstd support... " >&6; }
+
+
+
+# Check whether --with-zstd was given.
+if test "${with_zstd+set}" = set; then :
+  withval=$with_zstd;
+  case $withval in
+    yes)
+
+$as_echo "#define USE_ZSTD 1" >>confdefs.h
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      as_fn_error $? "no argument expected for --with-zstd option" "$LINENO" 5
+      ;;
+  esac
+
+else
+  with_zstd=no
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_zstd" >&5
+$as_echo "$with_zstd" >&6; }
+
+
+if test "$with_zstd" = yes; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
+$as_echo_n "checking for libzstd... " >&6; }
+
+if test -n "$ZSTD_CFLAGS"; then
+    pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$ZSTD_LIBS"; then
+    pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+        else
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$ZSTD_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libzstd) were not met:
+
+$ZSTD_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables ZSTD_CFLAGS
+and ZSTD_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/;.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	ZSTD_CFLAGS=$pkg_cv_ZSTD_CFLAGS
+	ZSTD_LIBS=$pkg_cv_ZSTD_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -13556,6 +13696,29 @@ done
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZSTD_H 1
+_ACEOF
+
+else
+  as_fn_error $? "zstd.h header file is required for zstd" "$LINENO" 5
+fi
+
+done
+
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   for ac_header in gssapi/gssapi.h
 do :
diff --git a/configure.ac b/configure.ac
index d62ea5f742..c4956745ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,21 @@ if test "$with_lz4" = yes; then
   CFLAGS="$LZ4_CFLAGS $CFLAGS"
 fi
 
+#
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with zstd support])
+PGAC_ARG_BOOL(with, zstd, no, [build with Zstd compression library],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with zstd support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  LIBS="$ZSTD_LIBS $LIBS"
+  CFLAGS="$ZSTD_CFLAGS $CFLAGS"
+fi
+
 #
 # Assignments
 #
@@ -1433,6 +1448,17 @@ if test "$with_lz4" = yes; then
   CPPFLAGS=$ac_save_CPPFLAGS
 fi
 
+if test "$with_zstd" = yes; then
+  ac_save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$ZSTD_CFLAGS $CPPFLAGS"
+
+  # Verify we have zstd's header files
+  AC_CHECK_HEADERS(zstd.h, [],
+       [AC_MSG_ERROR([zstd.h header file is required for zstd])])
+
+  CPPFLAGS=$ac_save_CPPFLAGS
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 257775c83b..94dd6ef3e9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3083,7 +3083,7 @@ include_dir 'conf.d'
         This parameter selects the compression method used to compress WAL when
         <varname>wal_compression</varname> is enabled.
         The supported methods are pglz, zlib, and (if configured when
-        <productname>PostgreSQL</productname> was built) lz4.
+        <productname>PostgreSQL</productname> was built) lz4 and zstd.
         The default value is <literal>pglz</literal>.
         Only superusers can change this setting.
        </para>
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 609d954a3a..9bac79b579 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -189,6 +189,9 @@ const struct config_enum_entry wal_compression_options[] = {
 #endif
 #ifdef  USE_LZ4
 	{"lz4", WAL_COMPRESSION_LZ4, false},
+#endif
+#ifdef  USE_ZSTD
+	{"zstd", WAL_COMPRESSION_ZSTD, false},
 #endif
 	{NULL, 0, false}
 };
diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c
index 9fe5c30236..5d1ae37dae 100644
--- a/src/backend/access/transam/xloginsert.c
+++ b/src/backend/access/transam/xloginsert.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 /* Buffer size required to store a compressed version of backup block image */
 #define PGLZ_MAX_BLCKSZ PGLZ_MAX_OUTPUT(BLCKSZ)
 
@@ -896,6 +900,21 @@ XLogCompressBackupBlock(char *page, uint16 hole_offset, uint16 hole_length,
 		break;
 #endif
 
+#ifdef USE_ZSTD
+	case WAL_COMPRESSION_ZSTD:
+		len = ZSTD_compress(dest, PGLZ_MAX_BLCKSZ, source, orig_len, 1);
+		if (ZSTD_isError(len))
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("failed compressing zstd: %s",
+						 ZSTD_getErrorName(len))));
+			len = -1;
+		}
+
+		break;
+#endif
+
 	default:
 		/*
 		 * It should be impossible to get here for unsupported algorithms,
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index fa1e38a810..caa1031d63 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -41,6 +41,10 @@
 #include "lz4.h"
 #endif
 
+#ifdef USE_ZSTD
+#include "zstd.h"
+#endif
+
 static void report_invalid_record(XLogReaderState *state, const char *fmt,...)
 			pg_attribute_printf(2, 3);
 static bool allocate_recordbuf(XLogReaderState *state, uint32 reclength);
@@ -1564,6 +1568,8 @@ wal_compression_name(WalCompression compression)
 			return "zlib";
 		case WAL_COMPRESSION_LZ4:
 			return "lz4";
+		case WAL_COMPRESSION_ZSTD:
+			return "zstd";
 		default:
 			return "???";
 	}
@@ -1621,6 +1627,16 @@ RestoreBlockImage(XLogReaderState *record, uint8 block_id, char *page)
 			break;
 #endif
 
+#ifdef USE_ZSTD
+		case WAL_COMPRESSION_ZSTD:
+			decomp_result = ZSTD_decompress(tmp.data, BLCKSZ-bkpb->hole_length,
+					ptr, bkpb->bimg_len);
+			// XXX: ZSTD_getErrorName
+			if (ZSTD_isError(decomp_result))
+				decomp_result = -1;
+			break;
+#endif
+
 		default:
 			report_invalid_record(record, "image at %X/%X is compressed with unsupported codec, block %d (%d/%s)",
 								  (uint32) (record->ReadRecPtr >> 32),
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 76f494cb9b..d372e2a817 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -213,7 +213,7 @@
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
 #wal_compression = off			# enable compression of full-page writes
-#wal_compression_method = pglz		# pglz, zlib, lz4
+#wal_compression_method = pglz		# pglz, zlib, lz4, zstd
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index e70886b81c..48b16b6083 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -329,6 +329,7 @@ typedef enum WalCompression
 	WAL_COMPRESSION_PGLZ,
 	WAL_COMPRESSION_ZLIB,
 	WAL_COMPRESSION_LZ4,
+	WAL_COMPRESSION_ZSTD,
 } WalCompression;
 
 extern const char *wal_compression_name(WalCompression compression);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 0a6422da4f..ad26393352 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -902,6 +902,9 @@
 /* Define to 1 to build with LZ4 support (--with-lz4) */
 #undef USE_LZ4
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+#undef USE_ZSTD
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES
 
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 14605371bb..fff0212087 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -486,6 +486,7 @@ sub GenerateFiles
 		USE_LIBXML                 => undef,
 		USE_LIBXSLT                => undef,
 		USE_LZ4                    => undef,
+		USE_ZSTD                   => $self->{options}->{zstd} ? 1 : undef,
 		USE_LDAP                   => $self->{options}->{ldap} ? 1 : undef,
 		USE_LLVM                   => undef,
 		USE_NAMED_POSIX_SEMAPHORES => undef,
-- 
2.17.0


--0qVF/w3MHQqLSynd
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="0008-Default-to-zstd.patch"



^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* Re: question regarding policy for patches to out-of-support branches
@ 2024-06-05 18:29 Tom Lane <[email protected]>
  2024-06-06 08:25 ` Re: question regarding policy for patches to out-of-support branches Hannu Krosing <[email protected]>
  0 siblings, 1 reply; 102+ messages in thread

From: Tom Lane @ 2024-06-05 18:29 UTC (permalink / raw)
  To: Joe Conway <[email protected]>; +Cc: pgsql-hackers

Joe Conway <[email protected]> writes:
> I was having a discussion regarding out-of-support branches and effort 
> to keep them building, but could not for the life of me find any actual 
> documented policy (although I distinctly remember that we do something...).
> Is the policy written down somewhere, or is it only project lore? In 
> either case, what is the actual policy?

I believe our policy was set in this thread:

https://www.postgresql.org/message-id/flat/2923349.1634942313%40sss.pgh.pa.us

and you're right that it hasn't really been memorialized anywhere
else.  I'm not sure where would be appropriate.  Anyway, what
I think the policy is:

* Out-of-support versions back to (currently) 9.2 are still to be
kept buildable on modern toolchains.

* Build failures, regression failures, and easily-fixable compiler
warnings are candidates for fixes.

* We aren't too excited about code that requires external dependencies
(e.g. libpython) though, because those can be moving targets.

* Under no circumstances back-patch anything that changes external
behavior, as the point of the exercise is to be able to test against
the actual behavior of the last releases of these branches.

			regards, tom lane






^ permalink  raw  reply  [nested|flat] 102+ messages in thread

* Re: question regarding policy for patches to out-of-support branches
  2024-06-05 18:29 Re: question regarding policy for patches to out-of-support branches Tom Lane <[email protected]>
@ 2024-06-06 08:25 ` Hannu Krosing <[email protected]>
  0 siblings, 0 replies; 102+ messages in thread

From: Hannu Krosing @ 2024-06-06 08:25 UTC (permalink / raw)
  To: Tom Lane <[email protected]>; +Cc: Joe Conway <[email protected]>; pgsql-hackers

On Wed, Jun 5, 2024 at 8:29 PM Tom Lane <[email protected]> wrote:
>
> Joe Conway <[email protected]> writes:
> > I was having a discussion regarding out-of-support branches and effort
> > to keep them building, but could not for the life of me find any actual
> > documented policy (although I distinctly remember that we do something...).
> > Is the policy written down somewhere, or is it only project lore? In
> > either case, what is the actual policy?
>
> I believe our policy was set in this thread:
>
> https://www.postgresql.org/message-id/flat/2923349.1634942313%40sss.pgh.pa.us
>
> and you're right that it hasn't really been memorialized anywhere
> else.  I'm not sure where would be appropriate.

Not absolutely sure, but would at least adding a page to PostgreSQL
Wiki about this make sense ?

---
Hannu






^ permalink  raw  reply  [nested|flat] 102+ messages in thread


end of thread, other threads:[~2024-06-06 08:25 UTC | newest]

Thread overview: 102+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2021-03-12 20:43 [PATCH 06/12] add wal_compression_method: zstd Justin Pryzby <[email protected]>
2021-03-12 20:43 [PATCH 07/10] add wal_compression_method: zstd Justin Pryzby <[email protected]>
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2021-03-12 20:43 [PATCH 07/10] add wal_compression_method: zstd Justin Pryzby <[email protected]>
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2021-03-12 20:43 [PATCH 7/8] add wal_compression_method=zstd Justin Pryzby <[email protected]>
2021-03-12 20:43 [PATCH 07/10] add wal_compression_method: zstd Justin Pryzby <[email protected]>
2021-03-12 20:43 [PATCH 07/10] add wal_compression_method: zstd Justin Pryzby <[email protected]>
2021-03-12 20:43 [PATCH 07/10] add wal_compression_method: zstd Justin Pryzby <[email protected]>
2024-06-05 18:29 Re: question regarding policy for patches to out-of-support branches Tom Lane <[email protected]>
2024-06-06 08:25 ` Re: question regarding policy for patches to out-of-support branches Hannu Krosing <[email protected]>

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