max_wal_size

A GUC parameter determining how large uncheckpointed WAL can grow before an automatic checkpoint is issued

max_wal_size is a GUC parameter determining how large uncheckpointed WAL can grow before an automatic checkpoint is issued.

max_wal_size was introduced in PostgreSQL 9.5; together with min_wal_size it replaces checkpoint_segments.

Default

Default value for max_wal_size is 1GB.

Change history

Categories

Configuration, GUC configuration item, WAL

See also

min_wal_size, wal_keep_size