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

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Cc: Kevin Grittner <kevin(dot)grittner(at)wicourts(dot)gov>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: could not truncate directory "pg_serial": apparent wraparound
Date: 2011-06-09 14:40:24
Message-ID: 1307630393-sup-8102@alvh.no-ip.org
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Excerpts from Heikki Linnakangas's message of jue jun 09 04:56:41 -0400 2011:

> Fortunately the fix is very simple, we just need to set the page_dirty
> flag whenever we modify an slru page. But clearly this slru stuff needs
> more testing. It's pretty hard to write good repeatable test cases for
> these things, though.

Maybe reduce the number of SLRU buffers used?

--
Álvaro Herrera <alvherre(at)commandprompt(dot)com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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