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Re: Strange message followed by server crash

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Donald Fraser <postgres(at)kiwi-fraser(dot)net>, "[ADMIN]" <pgsql-admin(at)postgresql(dot)org>
Subject: Re: Strange message followed by server crash
Date: 2006-08-25 15:24:13
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-admin
Tom Lane wrote:
> "Donald Fraser" <postgres(at)kiwi-fraser(dot)net> writes:
> > "Tom Lane" writes:
> >> Given that this sounds like it won't be easy to reproduce, I'm hoping
> >> you have a core file left from that and can get a stack trace from it.
> > Where would I look for a core file?
> > There's nothing unusual in the data directory, nothing in the /tmp =
> > directory?
> Normally it would go into the $PGDATA/base/NNN subdirectory for the
> database the backend was connected to.  A very few systems (OS X for
> instance) drop cores into a dedicated system-wide directory called
> /cores or some such.

Note that on recent versions of Linux you can modify both the file name
and the directory where it's saved, by modifying
/proc/sys/kernel/core_pattern (or the deprecated
/proc/sys/kernel/core_uses_pid).  See core(5) for details.

Alvaro Herrera                      
The PostgreSQL Company - Command Prompt, Inc.

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Subject: Issue With Restoring a Dump
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