log_rotation_size

When logging_collector is enabled, this parameter determines the maximum size of an individual log file. After this amount of data has been emitted into a log file, a new log file will be created. If this value is specified without units, it is taken as kilobytes. The default is 10 megabytes. Set to zero to disable size-based creation of new log files. This parameter can only be set in the postgresql.conf file or on the server command line.

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

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boot val: 10240
category: Reporting and Logging / Where to Log
context: sighup
doc same as: Unknown
documented: true
enumvals: Unknown
extra desc: 0 disables size-based creation of new log files.
lang: en
max val: 2147483647
metadata version: 18
min val: 0
name: log_rotation_size
short desc: Sets the maximum size a log file can reach before being rotated.
source: pg-settings-source-snapshot
unit: kB
vartype: integer

Definition PG 18

When logging_collector is enabled, this parameter determines the maximum size of an individual log file. After this amount of data has been emitted into a log file, a new log file will be created. If this value is specified without units, it is taken as kilobytes. The default is 10 megabytes. Set to zero to disable size-based creation of new log files. This parameter can only be set in the postgresql.conf file or on the server command line.

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Complete source facts

doc html

<p>
        When <code class="varname">logging_collector</code> is enabled,
        this parameter determines the maximum size of an individual log file.
        After this amount of data has been emitted into a log file,
        a new log file will be created.
        If this value is specified without units, it is taken as kilobytes.
        The default is 10 megabytes.
        Set to zero to disable size-based creation of new log files.
        This parameter can only be set in the <code class="filename">postgresql.conf</code>
        file or on the server command line.
       </p>

documentation revision

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Source references

Original manual reference

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:df05c85ba73c72b62dadab506c44641cdc6c2e1ff498afbb65597bbce6b3fa89

Text language: en · wiki-repair-20261023:df05c85ba73c72b62dadab506c44641cdc6c2e1ff498afbb65597bbce6b3fa89