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Re: DB Cluster hanging

From: "Nigel Bishop" <Nigel(dot)Bishop(at)ioko(dot)com>
To: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: <pgsql-admin(at)postgresql(dot)org>
Subject: Re: DB Cluster hanging
Date: 2005-10-13 16:48:39
Message-ID: 72558D9A7573814BB4082A28843E03D401DA5548@intyodc01.uk.ioko365.com (view raw or flat)
Thread:
Lists: pgsql-admin
Hi

Hmm...  a possible bug eh!  I'll make sure that the log destination
doesn't fill again

This is what I have in the postgresql.conf file:

log_destination = 'stderr'
redirect_stderr = true    
log_directory = '/opt/postgres/admin/log'
log_filename = 'PG-%Y-%m-%d_%H%M%S.log'


Thanks,
Nigel



-----Original Message-----
From: pgsql-admin-owner(at)postgresql(dot)org
[mailto:pgsql-admin-owner(at)postgresql(dot)org] On Behalf Of Tom Lane
Sent: 13 October 2005 17:12
To: Nigel Bishop
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: [ADMIN] DB Cluster hanging 

Nigel Bishop <nigel(dot)bishop(at)gmail(dot)com> writes:
> Last night at 3am our Postgresql DB cluster hung.  At the time data
> was being loaded.  The parameter log_statement_stats in the
> postgresql.conf file was set to true.  This was churning out data into
> the logfile which was switching every 10Mb.  Eventually the partition
> where the logfiles are written to filled up - fair enough - this had
> been going on since about 5.30pm the previous evening and the logfiles
> were being generated at the rate of 4/5 a minute.  The partition was
> cleared of old logs and I expected the DB to spring in to life, but no
> it just sat there.  I could not connect with psql or pg_ctl to
> shutdown the cluster.

How was the logging being done exactly?  syslog?  redirect_stderr?
If redirect_stderr, this could well be a PG bug --- I kinda doubt
anyone has tested that scenario.

			regards, tom lane

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Subject: Re: DB Cluster hanging
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