Re: Query, usually running <300ms, sometimes hangs for hours

From: "Markus Wollny" <Markus(dot)Wollny(at)computec(dot)de>
To: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: <pgsql-general(at)postgresql(dot)org>
Subject: Re: Query, usually running <300ms, sometimes hangs for hours
Date: 2011-07-25 16:27:23
Message-ID: 28011CD60FB1724DBA4442E38277F62613E2A781@hermes.computec.de
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Hi!

Tom Lane wrote:
> Yes, that reading is correct: this stack trace shows
> it's blocked trying to send query results back to
> the client.
> So you need to figure out why the client is failing
> to accept data.

Thanks; we saw one of those zombie queries again today, a simple restart
of the Tomcat instance was enough to get rid of it. It's definitely an
issue with the client. I shall try to get someone on the Railo
mailinglist to have a more thorough look at the issue, it's definitely
caused by a recent update - of the bleeding edge version though, so harm
done only to those who actively invited it ;)

Thanks for confirmation!

Kinds regards

Markus

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