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Re: Strange deadlock error last night

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Scott Whitney <swhitney(at)journyx(dot)com>, pgsql-admin(at)postgresql(dot)org
Subject: Re: Strange deadlock error last night
Date: 2009-01-13 22:04:13
Message-ID: 20090113220413.GI4005@alvh.no-ip.org (view raw or flat)
Thread:
Lists: pgsql-admin
Tom Lane wrote:
> "Scott Whitney" <swhitney(at)journyx(dot)com> writes:

> > It ended up locking up about 250 customer databases until I restarted the
> > postmaster. This is version 8.1.4. Upgrading right now (even to a minor rev)
> > is not really an option.
> 
> Not related to the immediate problem, but: you really need to schedule
> 5 minutes' downtime so you can update to 8.1.latest.  Reasons can be
> found here:
> http://www.postgresql.org/docs/8.1/static/release.html

Particularly so if you run autovacuum, because otherwise you'll be hit
by a bug fixed in 8.1.6 about template0 being unfrozen (thawed?)

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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