Re: auto vacuum settings - Mailing list pgsql-admin

From Tom Lane
Subject Re: auto vacuum settings
Date
Msg-id 1400.1125496055@sss.pgh.pa.us
Whole thread Raw
In response to auto vacuum settings  (Jeff Frost <jeff@frostconsultingllc.com>)
Responses Re: auto vacuum settings  (Alvaro Herrera <alvherre@alvh.no-ip.org>)
Re: auto vacuum settings  (Jeff Frost <jeff@frostconsultingllc.com>)
List pgsql-admin
Jeff Frost <jeff@frostconsultingllc.com> writes:
> Since we're on the vacuum kick these days, what's the best way to tell if my
> autovacuum settings are working well?  I'm sure I can query some info out of
> the pg_stats tables, no?

If the database isn't bloating (ie, physical storage growing faster than
valid data volume) then it's getting the job done.  Keep an eye on
"du $PGDATA" or pg_class.relpages entries.

> Also, if using autovacuum, should I still do a vacuum full on a regular
> basis?

No.  Needing to do a VACUUM FULL would be prima facie evidence that
autovacuum *isn't* getting its job done.

            regards, tom lane

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