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Wiki / Configuration Parameters

maintenance_io_concurrency

Similar to effective_io_concurrency, but used for maintenance work that is done on behalf of many client sessions. The default is 16. This value can be overridden for tables in a particular tablespace by setting the tablespace parameter of the same name (see ALTER TABLESPACE).

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
16
category
Resource Usage / I/O
context
user
documented
true
enumvals
Unknown
extra desc
0 disables simultaneous requests.
lang
en
max val
1000
metadata version
18
min val
0
name
maintenance_io_concurrency
short desc
A variant of "effective_io_concurrency" that is used for maintenance work.
source
pg-settings-source-snapshot
unit
Unknown
vartype
integer

Definition PG 18

Similar to effective_io_concurrency, but used for maintenance work that is done on behalf of many client sessions. The default is 16. This value can be overridden for tables in a particular tablespace by setting the tablespace parameter of the same name (see ALTER TABLESPACE).

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Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:078e4376da6f92d72e36f8524d3b7a42f42dce461587909e2a5e7d6aa429ee4f

Text language: en · wiki-repair-20261023:078e4376da6f92d72e36f8524d3b7a42f42dce461587909e2a5e7d6aa429ee4f