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From: Greg Williamson <gwilliamson39@yahoo.com>
To: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: Autovacuum Tuning advice
Date: Sun, 28 Feb 2010 23:08:02 -0800 (PST)
Message-ID: <841727.16396.qm@web46102.mail.sp1.yahoo.com> (raw)
In-Reply-To: <E2160D87-855A-49E9-8704-D6389A76C2F3@mimectl>
References: <4AB8D9AA.6050007@ummon.com>
	<4AB8E145.4040901@squeakycode.net>
	<E2160D87-855A-49E9-8704-D6389A76C2F3@mimectl>

Joe wrote:


> I have a very busy system that takes about 9 million inserts per day and each record gets
> updated at least once after the insert (all for the one same table), there are other tables that
> get hit but not as severely.  As suspected I am having a problem with table bloat.  Any advice
> on how to be more aggressive with autovacuum?  I am using 8.4.1.  My machine has 4 Intel
>  Xeon  3000 MHz Processors with 8 GB of Ram.
> 
> Currently I am using only defaults for autovac.
> 
> shared_buffers = 768MB                  # min 128kB
> work_mem = 1MB                          # min 64kB
> maintenance_work_mem = 384MB

<snip of default config settings>


Operating system ?

Any messages in logs ?

Greg W.


      



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