Type: | enum |
Default: | off |
Context: | postmaster |
Restart: | true |
Values: | [always, on, off] |
When archive_mode
is enabled, completed WAL segments are sent to archive storage by setting archive_command. In addition to off
, to disable, there are two modes: on
, and always
. During normal operation, there is no difference between the two modes, but when set to always
the WAL archiver is enabled also during archive recovery or standby mode. In always
mode, all files restored from the archive or streamed with streaming replication will be archived (again). See continuous-archiving-in-standby for details.
archive_mode
and archive_command are separate variables so that archive_command can be changed without leaving archiving mode. This parameter can only be set at server start. archive_mode
cannot be enabled when wal_level is set to minimal
.
Recommendations
On StackOverflow
On pgsql-hackers
- Re: BUG #16159: recovery requests WALs for the next timelines before timeline switch LSN has been reached
- Re: Nicer error when connecting to standby with hot_standby=off
- [BUG] non archived WAL removed during production crash recovery
- Re: backend type in log_line_prefix?
- Re: [BUG] non archived WAL removed during production crash recovery