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Wiki / Configuration Parameters

max_notify_queue_pages

Specifies the maximum amount of allocated pages for NOTIFY / LISTEN queue. The default value is 1048576. For 8 KB pages it allows to consume up to 8 GB of disk space. This parameter can only be set at server start.

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
1048576
category
Resource Usage / Disk
context
postmaster
documented
true
enumvals
Unknown
extra desc
Unknown
lang
en
max val
2147483647
metadata version
18
min val
64
name
max_notify_queue_pages
short desc
Sets the maximum number of allocated pages for NOTIFY / LISTEN queue.
source
pg-settings-source-snapshot
unit
Unknown
vartype
integer

Definition PG 18

Specifies the maximum amount of allocated pages for NOTIFY / LISTEN queue. The default value is 1048576. For 8 KB pages it allows to consume up to 8 GB of disk space. This parameter can only be set at server start.

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Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:2e14d42e410c01a5fad93c9f2595ff1a9cc644da19a1d8e2e168f99bcbf75c3f

Text language: en · wiki-repair-20261023:2e14d42e410c01a5fad93c9f2595ff1a9cc644da19a1d8e2e168f99bcbf75c3f