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Commit1d5c5ae

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Fix documentation for System V semaphores.
The formulas for SEMMNI and SEMMNS do not include the archiverprocess, which was converted to an auxiliary process in v14, andthe WAL summarizer process, which was introduced in v17. Thiscommit corrects these formulas and adds a missing reference tomax_wal_senders nearby. Since this section of the documentationtends to be incorrect quite often, we should likely give up ondocumenting the exact formulas in favor of something less fragile,but that is left as a future exercise.Reported-by: Sami ImseihReviewed-by: Sami ImseihDiscussion:https://postgr.es/m/20240517164452.GA1914161%40nathanxps13Backpatch-through: 12
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‎doc/src/sgml/runtime.sgml

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@@ -836,7 +836,8 @@ psql: could not connect to server: No such file or directory
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When using System V semaphores,
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<productname>PostgreSQL</productname> uses one semaphore per allowed connection
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(<xref linkend="guc-max-connections"/>), allowed autovacuum worker process
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(<xref linkend="guc-autovacuum-max-workers"/>) and allowed background
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(<xref linkend="guc-autovacuum-max-workers"/>), allowed WAL sender process
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(<xref linkend="guc-max-wal-senders"/>), and allowed background
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process (<xref linkend="guc-max-worker-processes"/>), in sets of 16.
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Each such set will
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also contain a 17th semaphore which contains a <quote>magic

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