Re: Autovacuum on by default?

From: "Larry Rosenman" <ler(at)lerctr(dot)org>
To: "'Bruce Momjian'" <bruce(at)momjian(dot)us>
Cc: "'Alvaro Herrera'" <alvherre(at)commandprompt(dot)com>, "'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 17:34:29
Message-ID: 002301c6c223$657024d0$0202fea9@aus.pervasive.com
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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

--
Larry Rosenman http://www.lerctr.org/~ler
Phone: +1 512-248-2683 E-Mail: ler(at)lerctr(dot)org
US Mail: 430 Valona Loop, Round Rock, TX 78681-3893

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