postgres.git / summary / log / commit / refs

commit    09d7caad32d8d6987964a85ff71d12f18f63f43f
Author:   Nathan Bossart <nathan@postgresql.org>
Date:     Mon Jun 03 17:10:43 2024 +0000
First released in: 17.0, 12.20, 13.16, 14.13, 15.8, 16.4

    Fix documentation for System V semaphores.
    
    The formulas for SEMMNI and SEMMNS do not include the archiver
    process, which was converted to an auxiliary process in v14, and
    the WAL summarizer process, which was introduced in v17.  This
    commit corrects these formulas and adds a missing reference to
    max_wal_senders nearby.  Since this section of the documentation
    tends to be incorrect quite often, we should likely give up on
    documenting the exact formulas in favor of something less fragile,
    but that is left as a future exercise.
    
    Reported-by: Sami Imseih
    Reviewed-by: Sami Imseih
    Discussion: https://postgr.es/m/20240517164452.GA1914161%40nathanxps13
    Backpatch-through: 12


 doc/src/sgml/runtime.sgml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml
index ac4934608c3..2f660e288e0 100644
--- a/doc/src/sgml/runtime.sgml
+++ b/doc/src/sgml/runtime.sgml
@@ -812,7 +812,8 @@ psql: could not connect to server: No such file or directory
     When using System V semaphores,
     <productname>PostgreSQL</productname> uses one semaphore per allowed connection
     (<xref linkend="guc-max-connections"/>), allowed autovacuum worker process
-    (<xref linkend="guc-autovacuum-max-workers"/>) and allowed background
+    (<xref linkend="guc-autovacuum-max-workers"/>), allowed WAL sender process
+    (<xref linkend="guc-max-wal-senders"/>), and allowed background
     process (<xref linkend="guc-max-worker-processes"/>), in sets of 16.
     Each such set will
     also contain a 17th semaphore which contains a <quote>magic


[parent: cd8f1c120799]