Message-ID: <46773F69.1020003@timbira.com>
Date: Mon, 18 Jun 2007 23:28:57 -0300
From: Euler Taveira de Oliveira <euler@timbira.com>
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To: "Campbell, Lance" <lance@uiuc.edu>
CC: pgsql-docs@postgresql.org,  pgsql-performance@postgresql.org
Subject: Re: Volunteer to build a configuration tool
References: <A3AC4FA47DC0B1458C3E5396E685E63302395E53@SAB-DC1.sab.uiuc.edu>
In-Reply-To: <A3AC4FA47DC0B1458C3E5396E685E63302395E53@SAB-DC1.sab.uiuc.edu>
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Campbell, Lance wrote:

> Next the person would press a button, “generate”, found below the
> questions.  The JavaScript HTML page would then generate content for two
> Iframes at the bottom on the page.  One Iframe would contain the
> contents of the postgresql.conf file.  The postgresql.conf settings
> would be tailored more to the individuals needs than the standard
> default file.  The second Iframe would contain the default settings one
> should consider using with their operating system.
> 
Man, it's not that easy. :-) Mainly because you will need some database
activity. For example, work_mem, checkpoint_segments, and
checkpoint_timeout depends on the database's dynamic.
Database are not that static so another idea is to build a piece of
software that monitors the database and do the modifications based on
some observations (log, stats, etc). Don't forget that some of these
options need a restart. So maybe your tool just advise the DBA that
he/she could change option X to Y.
Such a tool was proposed later [1] but it's not up to date. :(

[1] http://pgfoundry.org/projects/pgautotune/

-- 
  Euler Taveira de Oliveira
  http://www.timbira.com/