Re: could not truncate directory "pg_serial": apparent wraparound

From: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
To: Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: could not truncate directory "pg_serial": apparent wraparound
Date: 2011-06-08 19:30:31
Message-ID: 4DEFCDD7.1070102@enterprisedb.com
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On 08.06.2011 03:28, Kevin Grittner wrote:
> We had a report of the subject message during testing a while back
> and attempted to address the issue. It can result in a LOG level
> message and the accumulation of files in the pg_serial SLRU
> subdirectory. We haven't seen a recurrence, until I hit it during
> testing of the just-posted patch for SSI DDL. I re-read the code
> and believe that the attached is the correct fix.

Doesn't this patch bring back the issue mentioned in the comment: the
slru page might not get used again until we wrap-around?

--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com

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