From: Tom Lane <tgl@sss.pgh.pa.us>
To: David Kerr <dmk@mr-paradox.net>
Cc: pgsql-performance@postgresql.org
Subject: Re: "global/pgstat.stat" corrupt
Date: Fri, 22 Jun 2012 15:49:00 -0400
Message-ID: <17700.1340394540@sss.pgh.pa.us> (raw)
In-Reply-To: <20120622184632.GE94572@mr-paradox.net>
References: <20120622184632.GE94572@mr-paradox.net>
David Kerr <dmk@mr-paradox.net> writes:
> I just restored a DB from a cold backup (pg_ctl stop -m fast)
> When starting the DB I see:
> LOG: corrupted statistics file "global/pgstat.stat"
Is that repeatable? It wouldn't be too surprising to see this once when
starting from a filesystem backup, if you'd managed to capture a
partially written stats file in the backup.
> When I look at the filesystem I don't see a global/pgstat.stat file but i do see a
> pg_stat_tmp/pgstat.stat
This is normal --- global/pgstat.stat is only supposed to exist when the
system is shut down. Transient updates are written into pg_stat_tmp/
> Are those stats related to pg_stats style statistics?
No, this file is for the stats collection subsystem,
http://www.postgresql.org/docs/9.1/static/monitoring-stats.html
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, dmk@mr-paradox.net
Subject: Re: "global/pgstat.stat" corrupt
In-Reply-To: <17700.1340394540@sss.pgh.pa.us>
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