| 类型: | bool |
| 默认: | on |
| 上下文: | sighup |
| 重新开始: | false |
控制服务器是否运行自动清理启动器后台进程。默认为开启， 不过要自动清理正常工作还需要启用track_counts。 该参数只能在postgresql.conf文件或服务器命令行中设置， 不过，通过更改表存储参数可以为表禁用自动清理。
注意即使该参数被禁用，系统也会在需要防止事务ID回卷时发起清理进程。详情请见vacuum-for-wraparound。
建议 [EN]
Starts the daemon which cleans up your tables and indexes, preventing bloat and poor response times. The only reason to set it to “off” is for databases which regularly do large batch operations like ETL. Note that you can adjust the frequency or stop autovacuum on individual tables by adding rows to the pg_autovacuum system table.
在 StackOverflow
在 pgsql-hackers
- Re: [BUG] Autovacuum not dynamically decreasing cost_limit and cost_delay
- Re: Option to not use ringbuffer in VACUUM, using it in failsafe mode
- Re: Overhauling "Routine Vacuuming" docs, particularly its handling of freezing
- How to stop autovacuum silently
- Re: Should vacuum process config file reload more often