Re: Autovacuum on by default? - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: Autovacuum on by default?
Date
Msg-id 200608171736.k7HHaND27673@momjian.us
Whole thread Raw
In response to Re: Autovacuum on by default?  ("Larry Rosenman" <ler@lerctr.org>)
List pgsql-hackers
Larry Rosenman wrote:
> Bruce Momjian wrote:
> > Larry Rosenman wrote:
> >> Alvaro Herrera wrote:
> >>> Bruce Momjian wrote:
> >>>> Matthew T. O'Connor wrote:
> >>>>> Bruce Momjian wrote:
> >>>>>> Matthew T. O'Connor wrote:
> >>>>>> 
> >>>>>>> and increasing the log level when autovacuum actually fires off
> >>>>>>> a VACUUM or ANALYZE command. 
> >>>>>>> 
> >>>>>> 
> >>>>>> This was not done because the logging control only for autovacuum
> >>>>>> was going to be added.  Right now, if you want to see the vacuum
> >>>>>> activity, you end up seeing debug stuff too (very ugly).
> >>>>> 
> >>>>> Any chance we can make this change before release?  I think it's
> >>>>> very important to be able to look through the logs and *know* that
> >>>>> you tables are getting vacuumed or not.
> >>>> 
> >>>> Agreed.  I just IM'ed Alvaro and he says pg_stat_activity should
> >>>> now show exactly what autovacuum is doing (and if it doesn't,
> >>>> let's fix it). I think that is the best solution to the monitoring
> >>>> problem, rather than throwing lines in the server logs.
> >>> 
> >>> Well, the problem is that it shows what it's *currently* doing, but
> >>> it doesn't let you know what has happened in the last day or
> >>> whatever. It can't answer "has table foo been vacuumed recently?"
> >>> or "what tables haven't been vacuumed at all during this week?"
> >> 
> >> I added last vacuum and last analyze (both auto and manual) dates in
> >> the 8.2 tree.....
> > 
> > Uh, where?  I don't see it in pg_class, pg_database, or pg_autovacuum.
> > Is it somewhere else?
> 
> pg_stat_*_tables

Oh, great.  I had forgotten about that.  Thanks, so we are OK with
monitoring autovacuum for 8.2.

--  Bruce Momjian   bruce@momjian.us EnterpriseDB    http://www.enterprisedb.com
 + If your life is a hard drive, Christ can be your backup. +


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