Message-ID: <48E26C60.3060307@otg-nc.com>
Date: Tue, 30 Sep 2008 14:13:52 -0400
From: Chander Ganesan <chander@otg-nc.com>
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To: Jonny <blubb@terminalschmiede.de>
CC: pgsql-admin@postgresql.org
Subject: Re: turning of pg_xlog
References: <48E0B559.3070406@terminalschmiede.de>
In-Reply-To: <48E0B559.3070406@terminalschmiede.de>
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Jonny wrote:
> Hi,
>
> I have installes Postgres 8.0.15 on a embedded Linux and have only 130 
> MB for Postgres.
> Is it possible to turn off the comlete (Wal) pg_xlog? Because this is 
> the biggest part.
> I found an Entry how to minimize the count of stored xlogs.
> Is it possible to store it  to /dev/null or something else?
> Something like ln -s /dev/null  pg_xlog/ (I know this does not work 
> :-) ....
You should also understand that if you set checkpoint_segments to a 
small number, its still possible that PostgreSQL might use more than 
that number for a large transaction.  As such, be careful about limiting 
the space available to your xlogs, lest it cause transactions to fail 
due to insufficient space for the xlogs.

-- 
Chander Ganesan
Open Technology Group, Inc.
One Copley Parkway, Suite 210
Morrisville, NC  27560
919-463-0999/877-258-8987
http://www.otg-nc.com