On Tue, 2007-06-05 at 03:33 -0700, Charles.Hou wrote:
> how can i know that it's the time to vacuumdb? i set the crontab to
> vacuumdb 3 times in one day. because my database size increase from
> 440MB to 460MB in 8 hours.
Have you looked at autovaccum? It can handle this for you.
If not, you need to examine the output of VACUUM VERBOSE or pg_stattuple
(in contrib) and set a policy based on the output.
It's entirely possible that some tables will need to get vacuumed
frequently, and others will not.
--
Brad Nicholson 416-673-4106
Database Administrator, Afilias Canada Corp.