Re: autovacuum vacuums entire database...is this right? - Mailing list pgsql-general

From richyen3@gmail.com
Subject Re: autovacuum vacuums entire database...is this right?
Date
Msg-id 1180738123.071395.307170@i38g2000prf.googlegroups.com
Whole thread Raw
In response to autovacuum vacuums entire database...is this right?  ("richyen3@gmail.com" <richyen3@gmail.com>)
Responses Re: autovacuum vacuums entire database...is this right?
List pgsql-general
It's been about a month and a half, and I'm getting this VACUUM
again.  This time, I'm wondering if there's any way to tell if
autovacuum is doing a database-wide vacuum for the sake of xid
wraparound or for some other reason.  Is there some sort of entry that
gets put into the log, and if so, what log level would it be at?

If this doesn't get logged, could I make this a feature request?

Thanks!
--Richard



On Apr 15, 6:35 am, "richy...@gmail.com" <richy...@gmail.com> wrote:
> Hi,
>
> I'm just wondering if autovacuum is ever supposed to vacuum the entire
> database during one of its runs.  As far as I remember, it's supposed
> to vacuum one table at a time, based on the
> autovacuum_vacuum_threshold, autovacuum_analyze_threshold, etc.
> settings.
>
> For some reason, autovacuum decided to run a vacuum on my entire
> database (29GB large), and it's taking forever:
>
> select now(), query_start, current_query, backend_start, procpid,
> usename from pg_stat_activity where current_query <> '<IDLE>';
>               now              |          query_start          |
> current_query |         backend_start         | procpid | usename
> -------------------------------+-------------------------------
> +---------------+-------------------------------+---------+----------
>  2007-04-15 06:34:27.925042-07 | 2007-04-14 22:23:31.283894-07 |
> VACUUM        | 2007-04-14 22:23:31.274121-07 |    9406 | postgres
>
> Is this expected behavior?
>
> --Richard



pgsql-general by date:

Previous
From: Sergei Shelukhin
Date:
Subject: insane index scan times
Next
From: Lew
Date:
Subject: Re: Multiple customers sharing one database?