From bb8425491cb7d5c760913761bf13644a7e86f58f Mon Sep 17 00:00:00 2001 From: Nathan Bossart Date: Wed, 5 Jun 2024 15:32:47 -0500 Subject: [PATCH] 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 --- 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 9a028d6a73..24ea97ff0d 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -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 (), allowed autovacuum worker process - () and allowed background + (), allowed WAL sender process + (), and allowed background process (). On the platforms where this option is preferred, there is no specific kernel limit on the number of POSIX semaphores.