This is a document for PGroonga 2.X. See PGroonga 1.x document when you're using old PGroonga.

pgroonga.max_wal_size parameter

Since 2.3.3.


pgroonga.max_wal_size parameter controls the max PGroonga's WAL size.

You must use pgroonga.max_wal_size parameter with pgroonga_wal_applier module. You set pgroonga_max_wal_size parameter in primary server and enable pgroonga_wal_applier module in standby servers.

pgroonga.max_wal_size parameter value must be enough large for ensuring applying WAL on standby servers. If pgroonga.max_wal_size parameter value is small, data on standby servers are broken.



SET pgroonga.max_wal_size = size;

In postgresql.conf:

pgroonga.max_wal_size = size

size is a size value. The default unit is KiB. You can change unit by specify suffix such as MB for MiB.

The default is 0. It means that no size limit.


Here is an example to specify 10 MiB:

pgroonga.max_wal_size = 10MB

See also