From: Tom Lane <tgl@sss.pgh.pa.us>
To: Franck Routier <franck.routier@axege.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: long lasting select, no io nor cpu usage ?
Date: Thu, 20 Mar 2014 09:56:25 -0400
Message-ID: <2042.1395323785@sss.pgh.pa.us> (raw)
In-Reply-To: <532AF271.4040903@axege.com>
References: <532AF271.4040903@axege.com>
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Franck Routier <franck.routier@axege.com> writes:
> I am doing a select, that did not finish after some 15 hours... Select
> is as follows:
> select * from sanact where sanact___rfovsnide = 'MYVERSION' order by
> sanactcsu;
> There is an index on sanact___rfovsnide and doing EXPLAIN shows it is used.
> Resulting dataset should be 1626000 rows.
> iostat shows 99.5% idle disks, almost no activity.
> top shows almost no cpu usage.
> Where should I be looking for a problem ?
pg_locks, probably.
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, franck.routier@axege.com
Subject: Re: long lasting select, no io nor cpu usage ?
In-Reply-To: <2042.1395323785@sss.pgh.pa.us>
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