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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Wayne Cuddy <lists-pgsql@useunix.net>
Cc: PostgreSQL <pgsql-sql@postgresql.org>
Subject: Re: fsync debug messages in pgsql logs
Date: Wed, 08 Aug 2012 12:23:22 -0400
Message-ID: <12758.1344443002@sss.pgh.pa.us> (raw)
In-Reply-To: <20120808154416.GE16371@slacker.ja10629.home>
References: <20120808154416.GE16371@slacker.ja10629.home>

Wayne Cuddy <lists-pgsql@useunix.net> writes:
> I'm seeing this in my PGSQL logs, is this something to be concerned
> about? I know the file system it sits on is reliable and the DB appears
> to run with fine, additionally the log indicates it's a debug message. I
> did some google searches and didn't find much.
> When I examine the file system file by these names to not exist.

If it only complains once per file name, this is expected behavior when
somebody drops a table just before the checkpoint mechanism tries to
fsync it.  (If the failure were to repeat, then it might be something
more interesting.)  It does seem a bit odd that only fsm files are being
complained of, though.

What PG version is that exactly?

			regards, tom lane



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