[PATCH v8 5/7] Row pattern recognition patch (docs).

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[PATCH v8 5/7] Row pattern recognition patch (docs).
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* [PATCH v8 5/7] Row pattern recognition patch (docs).
@ 2023-09-25 05:01  Tatsuo Ishii <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Tatsuo Ishii @ 2023-09-25 05:01 UTC (permalink / raw)

---
 doc/src/sgml/advanced.sgml   | 52 ++++++++++++++++++++++++++++++++++
 doc/src/sgml/func.sgml       | 54 ++++++++++++++++++++++++++++++++++++
 doc/src/sgml/ref/select.sgml | 38 +++++++++++++++++++++++--
 3 files changed, 142 insertions(+), 2 deletions(-)

diff --git a/doc/src/sgml/advanced.sgml b/doc/src/sgml/advanced.sgml
index 755c9f1485..f39ec8f2d5 100644
--- a/doc/src/sgml/advanced.sgml
+++ b/doc/src/sgml/advanced.sgml
@@ -537,6 +537,58 @@ WHERE pos &lt; 3;
     <literal>rank</literal> less than 3.
    </para>
 
+   <para>
+    Row pattern common syntax can be used with row pattern common syntax to
+    perform row pattern recognition in a query. Row pattern common syntax
+    includes two sub clauses. <literal>DEFINE</literal> defines definition
+    variables along with an expression. The expression must be a logical
+    expression, which means it must
+    return <literal>TRUE</literal>, <literal>FALSE</literal>
+    or <literal>NULL</literal>. Moreover if the expression comprises a column
+    reference, it must be the argument of <function>rpr</function>. An example
+    of <literal>DEFINE</literal> is as follows.
+
+<programlisting>
+DEFINE
+ LOWPRICE AS price &lt;= 100,
+ UP AS price &gt; PREV(price),
+ DOWN AS price &lt; PREV(price)
+</programlisting>
+
+    Note that <function>PREV</function> returns price column in the previous
+    row if it's called in a context of row pattern recognition. So in the
+    second line means the definition variable "UP" is <literal>TRUE</literal>
+    when price column in the current row is greater than the price column in
+    the previous row. Likewise, "DOWN" is <literal>TRUE</literal> when when
+    price column in the current row is lower than the price column in the
+    previous row.
+   </para>
+   <para>
+    Once <literal>DEFINE</literal> exists, <literal>PATTERN</literal> can be
+    used. <literal>PATTERN</literal> defines a sequence of rows that satisfies
+    certain conditions.  For example following <literal>PATTERN</literal>
+    defines that a row starts with the condition "LOWPRICE", then one or more
+    rows satisfy "UP" and finally one or more rows satisfy "DOWN". If a
+    sequence of rows found, rpr returns the column at the starting row.
+    Example of a <literal>SELECT</literal> using the <literal>DEFINE</literal>
+    and <literal>PATTERN</literal> clause is as follows.
+
+<programlisting>
+SELECT company, tdate, price, max(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ AFTER MATCH SKIP PAST LAST ROW
+ INITIAL
+ PATTERN (LOWPRICE UP+ DOWN+)
+ DEFINE
+  LOWPRICE AS price &lt;= 100,
+  UP AS price &gt; PREV(price),
+  DOWN AS price &lt; PREV(price)
+);
+</programlisting>
+   </para>
+
    <para>
     When a query involves multiple window functions, it is possible to write
     out each one with a separate <literal>OVER</literal> clause, but this is
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 24ad87f910..9c99dda4ae 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -21780,6 +21780,7 @@ SELECT count(*) FROM sometable;
         returns <literal>NULL</literal> if there is no such row.
        </para></entry>
       </row>
+
      </tbody>
     </tgroup>
    </table>
@@ -21819,6 +21820,59 @@ SELECT count(*) FROM sometable;
    Other frame specifications can be used to obtain other effects.
   </para>
 
+  <para>
+   Row pattern recognition navigation functions are listed in
+   <xref linkend="functions-rpr-navigation-table"/>.  These functions
+   can be used to describe DEFINE clause of Row pattern recognition.
+  </para>
+
+   <table id="functions-rpr-navigation-table">
+    <title>Row Pattern Navigation Functions</title>
+    <tgroup cols="1">
+     <thead>
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        Function
+       </para>
+       <para>
+        Description
+       </para></entry>
+      </row>
+     </thead>
+
+     <tbody>
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>prev</primary>
+        </indexterm>
+        <function>prev</function> ( <parameter>value</parameter> <type>anyelement</type> )
+        <returnvalue>anyelement</returnvalue>
+       </para>
+       <para>
+        Returns the column value at the previous row;
+        returns NULL if there is no previous row in the window frame.
+       </para></entry>
+      </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>next</primary>
+        </indexterm>
+        <function>next</function> ( <parameter>value</parameter> <type>anyelement</type> )
+        <returnvalue>anyelement</returnvalue>
+       </para>
+       <para>
+        Returns the column value at the next row;
+        returns NULL if there is no next row in the window frame.
+       </para></entry>
+      </row>
+
+     </tbody>
+    </tgroup>
+   </table>
+
   <note>
    <para>
     The SQL standard defines a <literal>RESPECT NULLS</literal> or
diff --git a/doc/src/sgml/ref/select.sgml b/doc/src/sgml/ref/select.sgml
index 0ee0cc7e64..056768b330 100644
--- a/doc/src/sgml/ref/select.sgml
+++ b/doc/src/sgml/ref/select.sgml
@@ -966,8 +966,8 @@ WINDOW <replaceable class="parameter">window_name</replaceable> AS ( <replaceabl
     The <replaceable class="parameter">frame_clause</replaceable> can be one of
 
 <synopsis>
-{ RANGE | ROWS | GROUPS } <replaceable>frame_start</replaceable> [ <replaceable>frame_exclusion</replaceable> ]
-{ RANGE | ROWS | GROUPS } BETWEEN <replaceable>frame_start</replaceable> AND <replaceable>frame_end</replaceable> [ <replaceable>frame_exclusion</replaceable> ]
+{ RANGE | ROWS | GROUPS } <replaceable>frame_start</replaceable> [ <replaceable>frame_exclusion</replaceable> ] [row_pattern_common_syntax]
+{ RANGE | ROWS | GROUPS } BETWEEN <replaceable>frame_start</replaceable> AND <replaceable>frame_end</replaceable> [ <replaceable>frame_exclusion</replaceable> ] [row_pattern_common_syntax]
 </synopsis>
 
     where <replaceable>frame_start</replaceable>
@@ -1074,6 +1074,40 @@ EXCLUDE NO OTHERS
     a given peer group will be in the frame or excluded from it.
    </para>
 
+   <para>
+    The
+    optional <replaceable class="parameter">row_pattern_common_syntax</replaceable>
+    defines the <firstterm>row pattern recognition condition</firstterm> for
+    this
+    window. <replaceable class="parameter">row_pattern_common_syntax</replaceable>
+    includes following subclauses. <literal>AFTER MATCH SKIP PAST LAST
+    ROW</literal> or <literal>AFTER MATCH SKIP TO NEXT ROW</literal> controls
+    how to proceed to next row position after a match
+    found. With <literal>AFTER MATCH SKIP PAST LAST ROW</literal> (the
+    default) next row position is next to the last row of previous match. On
+    the other hand, with <literal>AFTER MATCH SKIP TO NEXT ROW</literal> next
+    row position is always next to the last row of previous
+    match. <literal>DEFINE</literal> defines definition variables along with a
+    boolean expression. <literal>PATTERN</literal> defines a sequence of rows
+    that satisfies certain conditions using variables defined
+    in <literal>DEFINE</literal> clause. If the variable is not defined in
+    the <literal>DEFINE</literal> clause, it is implicitly assumed
+    following is defined in the <literal>DEFINE</literal> clause.
+
+<synopsis>
+<literal>variable_name</literal> AS TRUE
+</synopsis>
+
+    Note that the maximu number of variables defined
+    in <literal>DEFINE</literal> clause is 26.
+
+<synopsis>
+[ AFTER MATCH SKIP PAST LAST ROW | AFTER MATCH SKIP TO NEXT ROW ]
+PATTERN <replaceable class="parameter">pattern_variable_name</replaceable>[+] [, ...]
+DEFINE <replaceable class="parameter">definition_varible_name</replaceable> AS <replaceable class="parameter">expression</replaceable> [, ...]
+</synopsis>
+   </para>
+
    <para>
     The purpose of a <literal>WINDOW</literal> clause is to specify the
     behavior of <firstterm>window functions</firstterm> appearing in the query's
-- 
2.25.1


----Next_Part(Mon_Sep_25_14_26_30_2023_752)--
Content-Type: Text/X-Patch; charset=us-ascii
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="v8-0006-Row-pattern-recognition-patch-tests.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-06 15:38  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-06 15:38 UTC (permalink / raw)

Author:
Reviewed-by:
Discussion: https://postgr.es/m/
Backpatch:
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--ds7cemehex757p34
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v1-0003-tests-Try-to-fix-race-condition-in-postmaster-002.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

* [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails
@ 2025-03-07 14:44  Andres Freund <[email protected]>
  0 siblings, 0 replies; 519+ messages in thread

From: Andres Freund @ 2025-03-07 14:44 UTC (permalink / raw)

If wait_connect() failed due to psql exiting, all that we'd see is a "process
ended prematurely" error thrown by IPC::Run, without ever seeing psql's error
message.

Address that by wrapping the pump() call in eval and taking note of stdout &
stderr in case of failure.

We might want to do that in pump_until() as well, but that seems to require
API changes, so let's do the easily achievable bit first.

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
---
 .../perl/PostgreSQL/Test/BackgroundPsql.pm    | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
index c611a61cf4e..1deb410c133 100644
--- a/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
+++ b/src/test/perl/PostgreSQL/Test/BackgroundPsql.pm
@@ -154,10 +154,28 @@ sub wait_connect
 	my $banner = "background_psql: ready";
 	my $banner_match = qr/(^|\n)$banner\r?\n/;
 	$self->{stdin} .= "\\echo $banner\n\\warn $banner\n";
-	$self->{run}->pump()
-	  until ($self->{stdout} =~ /$banner_match/
-		  && $self->{stderr} =~ /$banner\r?\n/)
-	  || $self->{timeout}->is_expired;
+
+	# IPC::Run throws in case psql exits while we're pumping. To make it
+	# easier to diagnose that, catch the error, report stdout/stderr at time
+	# of death and reraise.
+	eval {
+		$self->{run}->pump()
+		  until ($self->{stdout} =~ /$banner_match/
+			  && $self->{stderr} =~ /$banner\r?\n/)
+		  || $self->{timeout}->is_expired;
+	};
+	if ($@)
+	{
+		chomp(my $stdout = $self->{stdout});
+		chomp(my $stderr = $self->{stderr});
+		chomp(my $err = $@);
+		diag qq(psql died while connecting:
+  stdout: $stdout
+  stderr: $stderr
+  perl error: $err
+);
+		die "psql died while connecting";
+	}
 
 	note "connect output:\n",
 	  explain {
-- 
2.48.1.76.g4e746b1a31.dirty


--q4d36jgrlhdhudrc
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v2-0003-tests-Fix-race-condition-in-postmaster-002_connec.patch"



^ permalink  raw  reply  [nested|flat] 519+ messages in thread

end of thread, other threads:[~2025-03-07 14:44 UTC | newest]

Thread overview: 519+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2023-09-25 05:01 [PATCH v8 5/7] Row pattern recognition patch (docs). Tatsuo Ishii <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-06 15:38 [PATCH v1 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
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2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>
2025-03-07 14:44 [PATCH v2 2/4] tests: Add note if BackgroundPsql::wait_connect() fails Andres Freund <[email protected]>

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