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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Craig Ringer <ringerc@ringerc.id.au>
Cc: Anibal David Acosta <aa@devshock.com>
Cc: pgsql-admin@postgresql.org
Subject: Re: Timeout error on pgstat
Date: Wed, 01 Aug 2012 23:59:00 -0400
Message-ID: <9899.1343879940@sss.pgh.pa.us> (raw)
In-Reply-To: <5019DF49.9000408@ringerc.id.au>
References: <00dc01cd7024$07854340$168fc9c0$@devshock.com>
	<5019DF49.9000408@ringerc.id.au>

Craig Ringer <ringerc@ringerc.id.au> writes:
> On 08/02/2012 04:27 AM, Anibal David Acosta wrote:
>> I have a lot (maybe 1 every 10 seconds) of this error WARNING:  pgstat 
>> wait timeout
>> 
> A quick search suggests this can be due to excessive I/O. However, this 
> thread:
> http://postgresql.1045698.n5.nabble.com/pgstat-wait-timeout-td5078125.html
> sounds very similar to your issue. I'm wondering if there's a bug 
> lurking in there somewhere.

Yeah, a lot of us are wondering that.  In principle, only a ridiculously
high load could result in triggering this message, but some people can
reproduce it under what apparently isn't very high load.  If we could
identify what's different about their setups, maybe we could figure out
what's going on.

			regards, tom lane



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