From: Joe Conway <mail@joeconway.com>
To: Burgholzer, Robert (DEQ) <Robert.Burgholzer@deq.virginia.gov>
Cc: pgsql-admin@postgresql.org
Subject: Re: diagnosing a db crash - server exit code 2
Date: Fri, 23 Sep 2011 12:23:18 -0700
Message-ID: <4E7CDCA6.6060803@joeconway.com> (raw)
In-Reply-To: <B6C40D17104BEF47B1CB85623CDFAC6357BE26@COVMSGCES-EMB13.cov.virginia.gov>
References: <B6C40D17104BEF47B1CB85623CDFAC6357BE26@COVMSGCES-EMB13.cov.virginia.gov>
On 09/23/2011 12:02 PM, Burgholzer, Robert (DEQ) wrote:
> I am trying to get my head around why I keep getting crashes to my PG
> 8.3.7 database on CentOS - Linux version 2.6.18-164.el5. There are 3
> slightly different (I think) circumstances leading to a crash of the
> database, all related in some way to long running PHP scripts with
> intensive activity on PG connections.
> #1 - execution of an R call via pLR (sometimes this may crash it all by
> itself)
> #2 - execution of a postGIS query (possible)
> #3 - random occurences, all related to the same long running PHP scripts
>
> I have read that perhaps hardware and/or system settings may cause
> this. I believe the system is running i9 processors, that may be set
> into some sort of virtual multi-threading mode. Thanks for any insight
> you all can give in tracking this down.
Are you maybe getting bitten by the OOM killer?
http://www.postgresql.org/docs/8.3/interactive/kernel-resources.html#AEN22246
Joe
--
Joe Conway
credativ LLC: http://www.credativ.us
Linux, PostgreSQL, and general Open Source
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To: pgsql-admin@postgresql.org
Cc: mail@joeconway.com, Robert.Burgholzer@deq.virginia.gov
Subject: Re: diagnosing a db crash - server exit code 2
In-Reply-To: <4E7CDCA6.6060803@joeconway.com>
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