Re: [HACKERS] Still recommending daily vacuum...
Bruce Momjian <bruce@momjian.us>
From: Bruce Momjian <bruce@momjian.us>
To: "Jim C. Nasby" <decibel@decibel.org>
Cc: PostgreSQL-patches <pgsql-patches@postgresql.org>
Date: 2007-09-13T23:44:18Z
Lists: pgsql-hackers
Attachments
- /rtmp/diff (text/x-diff) patch
Jim C. Nasby wrote: -- Start of PGP signed section. > From > http://developer.postgresql.org/pgdocs/postgres/routine-vacuuming.html : > > "Recommended practice for most sites is to schedule a database-wide > VACUUM once a day at a low-usage time of day, supplemented by more > frequent vacuuming of heavily-updated tables if necessary. (Some > installations with extremely high update rates vacuum their busiest > tables as often as once every few minutes.) If you have multiple > databases in a cluster, don't forget to VACUUM each one; the program > vacuumdb might be helpful." > > Do we still want that to be our formal recommendation? ISTM it would be > more logical to recommend a combination of autovac, daily vacuumdb -a if > you can afford it and have a quiet period, and frequent manual vacuuming > of things like web session tables. > > I'm happy to come up with a patch, but I figure there should be > consensus first... I have applied the following patch to emphasize autovacuum rather than administrator-scheduled vacuums. -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. +