[SQL] Postgres entering zombie state once a week in production evnvironment

2009-04-14 Thread Bryce Nesbitt
We have a medium scale installation of Postgres 8.3 that is freezing about once a week. I'm looking for any hints on how to diagnose the situation, as nothing is logged. The system is matched pair of Sunfire servers, running Debian Etch with a 2.6.18-6-amd64 kernel, PostgreSQL 8.3.4, and

Re: [SQL] Postgres entering zombie state once a week in production evnvironment

2009-04-14 Thread Achilleas Mantzios
Στις Tuesday 14 April 2009 09:25:54 ο/η Bryce Nesbitt έγραψε: We have a medium scale installation of Postgres 8.3 that is freezing about once a week. I'm looking for any hints on how to diagnose the situation, as nothing is logged. The system is matched pair of Sunfire servers, running

Re: [SQL] Postgres entering zombie state once a week in production evnvironment

2009-04-14 Thread Scott Marlowe
On Tue, Apr 14, 2009 at 12:25 AM, Bryce Nesbitt bry...@obviously.com wrote: We have a medium scale installation of Postgres 8.3 that is freezing about once a week.  I'm looking for any hints on how to diagnose the situation, as nothing is logged. The system is matched pair of Sunfire servers,

Re: [SQL] Postgres entering zombie state once a week in production evnvironment

2009-04-14 Thread Bryce Nesbitt
Thanks for the thoughts on what to check. Unfortunately, the priority of the people responding to the incidents has been to get the system live again. I will add these items to a list that, hopefully, will be run through prior to restarting Postgres. Achilleas Mantzios wrote: Did you

Re: [SQL] Postgres entering zombie state once a week in production evnvironment

2009-04-14 Thread Bryce Nesbitt
Scott Marlowe wrote: What does pg_locks say during this time? Specifically about locks that aren't granted? I don't know, yet. Though these events go for 15-30 minutes before postgres restart, and no deadlocks are detected, so I don't think it is locks. -- Sent via pgsql-sql mailing list

Re: [SQL] Postgres entering zombie state once a week in production evnvironment

2009-04-14 Thread Scott Marlowe
On Tue, Apr 14, 2009 at 2:59 PM, Bryce Nesbitt bry...@obviously.com wrote: Scott Marlowe wrote: What does pg_locks say during this time?  Specifically about locks that aren't granted? I don't know, yet.  Though these events go for 15-30 minutes before postgres restart, and no deadlocks are