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Re: significant vacuum issues - looking for suggestions

From: Decibel! <decibel(at)decibel(dot)org>
To: Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>
Cc: Bill Moran <wmoran(at)collaborativefusion(dot)com>,Kevin Kempter <kevin(at)kevinkempterllc(dot)com>,Pgsql performance <pgsql-performance(at)postgresql(dot)org>
Subject: Re: significant vacuum issues - looking for suggestions
Date: 2007-08-27 22:04:39
Message-ID: 20070827220438.GR54309@nasby.net (view raw or flat)
Thread:
Lists: pgsql-performance
On Mon, Aug 27, 2007 at 04:56:33PM -0500, Kevin Grittner wrote:
> >>> Decibel! <decibel(at)decibel(dot)org> 08/27/07 4:00 PM >>> 
> > > > They're running  version 8.1.4
> > 
> > As for your pg_dump idea... why not just do a CREATE TABLE AS SELECT *
> > FROM bloated_table? That would likely be much faster than messing around
> > with pg_dump.
>  
> He wanted to upgrade to 8.2.4.  CREATE TABLE AS won't get him there.
>  
> > > > They're running  version 8.1.4 on 4-way dell boxes 
> > > > with 4Gig of memory on each box attached to RAID-10 disk arrays. 
> > 
> > What kind of disk hardware is this running on? A good raid 10 array with
> > write caching should be able to handle a 200G database fairly well
>  
> What other details were you looking for?

How many drives? Write caching? 200G isn't *that* big for good drive
hardware, *IF* it's performing the way it should. You'd be surprised how
many arrays fall on their face even from a simple dd test.
-- 
Decibel!, aka Jim Nasby                        decibel(at)decibel(dot)org
EnterpriseDB      http://enterprisedb.com      512.569.9461 (cell)

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