According to the WAL config documentation correctly, checkpoints are created every checkpoint_segments log segments, or every checkpoint_timeout seconds, whichever comes first. However, it seems as though setting my checkpoint_timeout has no effect on checkpoint creation ( I have it set to 30 seconds). Forcing checkpoint by running psql –c CHECKPOINT mydb doesn’t do the trick either. Checkpoints are created solely based on the checkpoint_segments logs reaching their configured size.
This is not satisfactory in a low transaction volume environment. Any hints on how else can I trigger checkpoint?
