Wiki / Configuration Parameters
num_os_semaphores
Reports the number of semaphores that are needed for the server based on the configured number of allowed connections (max_connections), allowed autovacuum worker processes (autovacuum_max_workers), allowed WAL sender processes (max_wal_senders), allowed background processes (max_worker_processes), etc.
English manual coverage begins with PostgreSQL 7.4. Source history and runtime observations have their own recorded version boundaries.
Reading PG 18·Select a recorded version
- boot val
- 0
- category
- Preset Options
- context
- internal
- documented
- true
- enumvals
- Unknown
- extra desc
- Unknown
- lang
- en
- max val
- 2147483647
- metadata version
- 18
- min val
- 0
- name
- num_os_semaphores
- short desc
- Shows the number of semaphores required for the server.
- source
- pg-settings-source-snapshot
- unit
- Unknown
- vartype
- integer
Definition PG 18
Reports the number of semaphores that are needed for the server based on the configured number of allowed connections (max_connections), allowed autovacuum worker processes (autovacuum_max_workers), allowed WAL sender processes (max_wal_senders), allowed background processes (max_worker_processes), etc.
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Definition sources
center · PostgreSQL 18 · wiki-repair-20261023:dd1879234674f718b05388739f0a036b50f445a98deb0a857a0cb61f12e9c7a7
Text language: en · wiki-repair-20261023:dd1879234674f718b05388739f0a036b50f445a98deb0a857a0cb61f12e9c7a7