Fix documentation for POSIX semaphores.

The documentation for POSIX semaphores is missing a reference to
max_wal_senders.  This commit fixes that in the same way that
commit 4ebe51a5fb fixed the same issue in the documentation for
System V semaphores.

Discussion: https://postgr.es/m/20240517164452.GA1914161%40nathanxps13
Backpatch-through: 12
This commit is contained in:
Nathan Bossart 2024-06-05 15:32:47 -05:00
parent b6dbbaa302
commit 8111e80c5d

View file

@ -884,7 +884,8 @@ psql: error: connection to server on socket "/tmp/.s.PGSQL.5432" failed: No such
When using POSIX semaphores, the number of semaphores needed is the
same as for System V, that is 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"/>).
On the platforms where this option is preferred, there is no specific
kernel limit on the number of POSIX semaphores.