max_wal_size
Maximum size to let the WAL grow during automatic checkpoints. This is a soft limit; WAL size can exceed max_wal_size under special circumstances, such as heavy load, a failing archive_command or archive_library, or a high wal_keep_size setting. If this value is specified without units, it is taken as megabytes. The default is 1 GB. Increasing this parameter can increase the amount of time needed for crash recovery. This parameter can only be set in the postgresql.conf file or on the server command line.
英文手册覆盖始于 PostgreSQL 7.4. 来源历史与运行验证各自保留独立版本边界。
当前阅读 PG 18·选择有来源记录的版本
此版本暂无所选语言的定义，以下显示原始英文内容。
- boot val
- 1024
- category
- Write-Ahead Log / Checkpoints
- context
- sighup
- documented
- true
- enumvals
- 未知
- extra desc
- 未知
- lang
- en
- max val
- 2147483647
- metadata version
- 18
- min val
- 2
- name
- max_wal_size
- short desc
- Sets the WAL size that triggers a checkpoint.
- source
- pg-settings-source-snapshot
- unit
- MB
- vartype
- integer
版本定义 PG 18
Maximum size to let the WAL grow during automatic checkpoints. This is a soft limit; WAL size can exceed max_wal_size under special circumstances, such as heavy load, a failing archive_command or archive_library, or a high wal_keep_size setting. If this value is specified without units, it is taken as megabytes. The default is 1 GB. Increasing this parameter can increase the amount of time needed for crash recovery. This parameter can only be set in the postgresql.conf file or on the server command line.
比较版本
来源引用
定义来源
center · PostgreSQL 18 · english-manuals:ecec1a38c674b62f4d3718908273b1fe2bdd1b426f11a0ea2060c643c503ea66
正文语言: en · english-manuals:ecec1a38c674b62f4d3718908273b1fe2bdd1b426f11a0ea2060c643c503ea66