Yes, we are copying from pg_xlog. By doing so we let the WAL-segments fill up 
(not using timeout) and we are able to recover within a 10 minute interval.

Could it be that this copy operation is causing the problem?

Per

-----Original Message-----
From: Magnus Hagander [mailto:[EMAIL PROTECTED] 
Sent: 3. juni 2008 15:47
To: Per Lauvås
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Failing to recover after panic shutdown

Per Lauvås wrote:
> Hi
> 
> I am running Postgres 8.2 on Windows 2003 server SP2.
> 
> Every now and then (2-3 times a year) our Postgres service is down
> and we need to manually start it. This is what we find:
> 
> In log when going down:
> 2008-06-02 13:40:02 PANIC:  could not open file
> "pg_xlog/000000010000001C00000081" (log file 28, segment 129):
> Invalid argument

Are you by any chance running an antivirus or other "security software"
on this server?

> We are archiving WAL-segments at a remote machine, and we are copying
> non-filled WAL-segments every 10 minutes to be able to rebuild the DB
> with a maximum of 10 minutes of missing data. (I don't know if that
> has anything to do with it).

How are you copying these files? Are you saying you're actually copying
the files out of the pg_xlog directory, or are you using the
archive_command along with archive_timeout?

//Magnus


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