From: Tom Lane <tgl@sss.pgh.pa.us>
To: Stéphane Schildknecht <stephane.schildknecht@postgresqlfr.org>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: Vacuum goes worse
Date: Tue, 16 Oct 2007 10:26:08 -0400
Message-ID: <15640.1192544768@sss.pgh.pa.us> (raw)
In-Reply-To: <47147AD8.9010704@postgresqlfr.org>
References: <47147AD8.9010704@postgresqlfr.org>
=?ISO-8859-1?Q?St=E9phane_Schildknecht?= <stephane.schildknecht@postgresqlfr.org> writes:
> For some times, we have a vacuuming process on a specific table that
> goes slower and slower. In fact, it took some 3 minutes a month ago, and
> now it take almost 20 minutes. But, if one day it take so many time, it
> is possible that on the day after it will only take 4 minutes...
> I know the table in concern had 450000 tuples two months ago and now has
> more than 700000 tuples in it.
The real question is how often do rows get updated? I suspect you
probably need to vacuum this table more than once a day.
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, stephane.schildknecht@postgresqlfr.org
Subject: Re: Vacuum goes worse
In-Reply-To: <15640.1192544768@sss.pgh.pa.us>
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