From: Tom Lane <tgl@sss.pgh.pa.us>
To: RESTOUX, Loïc <loic.restoux@capgemini.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: [PG 8.1.0 / AIX 5.3] Vacuum processes freezing
Date: Wed, 13 Jun 2007 14:06:28 -0400
Message-ID: <14786.1181757988@sss.pgh.pa.us> (raw)
In-Reply-To: <F10D59BC922A9D47B7FE1B0A31AC7B5343D4DB@CORPMAIL31.corp.capgemini.com>
References: <F10D59BC922A9D47B7FE1B0A31AC7B5343D4DB@CORPMAIL31.corp.capgemini.com>
=?iso-8859-1?Q?RESTOUX=2C_Lo=EFc?= <loic.restoux@capgemini.com> writes:
> Since some weeks, the amount of data hosted by the database grows, and, som=
> e nights, the database vacuum seems to "freeze" during his execution. In v=
> erbose mode, the logs show that the vacuum clean up a table (not always the=
> same table), and... no more news. The system shows a vacuum process, which=
> seems to be sleeping (no CPU used, no memory consumption...).
Have you looked into pg_locks to see if it's blocked on someone else's lock?
regards, tom lane
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, loic.restoux@capgemini.com
Subject: Re: [PG 8.1.0 / AIX 5.3] Vacuum processes freezing
In-Reply-To: <14786.1181757988@sss.pgh.pa.us>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox