Re: Autovacuum on by default?

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Larry Rosenman <ler(at)lerctr(dot)org>
Cc: "'Bruce Momjian'" <bruce(at)momjian(dot)us>, "'Matthew T(dot) O'Connor'" <matthew(at)zeut(dot)net>, "'Peter Eisentraut'" <peter_e(at)gmx(dot)net>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Autovacuum on by default?
Date: 2006-08-17 17:31:29
Message-ID: 20060817173129.GS318@alvh.no-ip.org
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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.....

Ah, true, I forgot about that.

--
Alvaro Herrera http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.

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