From: Matthew T. O'Connor <matthew@zeut.net>
To: Jeremy Haile <jhaile@fastmail.fm>
Cc: pgsql-performance@postgresql.org
Subject: Re: Autoanalyze settings with zero scale factor
Date: Thu, 18 Jan 2007 15:40:07 -0500
Message-ID: <45AFDB27.2040502@zeut.net> (raw)
In-Reply-To: <1169151707.6247.1169971737@webmail.messagingengine.com>
References: <1169145474.20103.1169962769@webmail.messagingengine.com>
<45AFC86B.9010704@zeut.net>
<1169151707.6247.1169971737@webmail.messagingengine.com>
Jeremy Haile wrote:
>> Also, are other auto-vacuums and auto-analyzes showing up in the
>> pg_stats table? Maybe it's a stats system issue.
>>
>
> No tables have been vacuumed or analyzed today. I had thought that this
> problem was due to my pg_autovacuum changes, but perhaps not. I
> restarted PostgreSQL (in production - yikes) About a minute after being
> restarted, the autovac process fired up.
>
> What could get PG in a state where autovac isn't running? Is there
> anything I should watch to debug or monitor for this problem in the
> future? I wish I'd noticed whether or not the stats collector process
> was running before I restarted.
First off you shouldn't need to restart PG. When it wasn't working did
you ever check the autovacuum_enabled setting? For example within psql:
"show autovacuum;".
I would venture to guess that autovacuum was disabled for some reason.
Perhaps last time you started the server the stats settings weren't enabled?
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To: pgsql-performance@postgresql.org
Cc: matthew@zeut.net, jhaile@fastmail.fm
Subject: Re: Autoanalyze settings with zero scale factor
In-Reply-To: <45AFDB27.2040502@zeut.net>
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