Re: autovacuum daemon question...

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От Bruce Momjian
Тема Re: autovacuum daemon question...
Дата
Msg-id 200512040403.jB4435Z09628@candle.pha.pa.us
обсуждение исходный текст
Ответ на Re: autovacuum daemon question...  (Jeff Bohmer <jdblist@visionlink.org>)
Список pgsql-admin
Added to TODO for autovacuum:

        o Consider logging activity either to the logs or a system view


---------------------------------------------------------------------------

Jeff Bohmer wrote:
>
> >>Unless I misunderstand, if stats_reset_on_server_start=off, these
> >>(currently nonexistent autovacuum) stats would only be relevant for
> >>autovacuum's VACUUM activity and not it's ANALYZE activity.  In
> >>which case, it seems ideal to keep autovacuum VACUUM stats
> >>regardless of the GUC setting, while autovacuum ANALYZE stats
> >>should follow it. But if the ideal is impractical, making both
> >>ANALYZE and VACUUM stats follow the GUC would still be real nice.
> >
> >I'm confused...  the GUC var stats_reset_on_server_start dictates if
> >the stats system dumps its data on DB restart.  If we added a new
> >table to the stats system kept track of autovacuum activity, then
> >that data would also be dumped on restart if
> >stats_reset_on_server_start=true.
>
>
> Yep.  I was thinking of a way to muck up the stats system by keeping
> autovacuum's VACUUM activity irregardless of
> stats_reset_on_server_start.  Because autovacuum's VACUUM activity
> data would be relevant across restarts, even if
> stats_reset_on_server_start=true.  But I see now that my idea is ugly
> and just confuses things.  I agree that having it work the way you
> suggest is preferable.
>
> - Jeff
>
>
> --
>
> Jeff Bohmer
> VisionLink, Inc.
>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: explain analyze is your friend
>

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