Michael Monnerie wrote:
> why did postgres suddenly decide to remove the old cruft suddenly?
Have you read through this yet?:
http://www.postgresql.org/docs/8.3/interactive/runtime-config-resource.html#RUNTIME-CONFIG-RESOURCE-FSM
> Autovacuum is on, the nightly backups do an extra "vacuum analyze",
> and once a week a CLUSTER is done for the big tables.
You should probably make that a "vacuum analyze verbose" to get a
good idea of where you should set max_fsm_pages, and to look for
where you are accumumlating free space to track.
-Kevin