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List:       postgresql-admin
Subject:    Re: [ADMIN] full vacuum - resources - scaling
From:       Andrew Sullivan <ajs () crankycanuck ! ca>
Date:       2006-05-30 14:58:28
Message-ID: 20060530145828.GB20300 () phlogiston ! dyndns ! org
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On Tue, May 30, 2006 at 09:44:22AM -0400, Mr. Dan wrote:
> Hi,
> 
> I have noticed that my full vacuum and re-index script is taking a day and 
> a half instead of 1/2 day.
> Recently, the size of my database cluster has doubled to 130 GB.   Would 
> anyone recommend increasing one or more of these to help get my full 
> vacuums to run a little faster?

What Alvaro said.  I'll also point out, however, that in my
experience, VACUUM FULL time does not increase linearly with database
size.  I suspect this is because of the cost of reorganising so much
more data, but I haven't done any real analysis of it.

The main thing is, "Don't do vacuum full."

A
-- 
Andrew Sullivan  | ajs@crankycanuck.ca
The whole tendency of modern prose is away from concreteness.
		--George Orwell

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TIP 2: Don't 'kill -9' the postmaster
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