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From: Heikki Linnakangas <heikki@enterprisedb.com>
To: Francisco Reyes <lists@stringsutils.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Performance query about large tables, lots of concurrent access
Date: Tue, 19 Jun 2007 18:57:41 +0100
Message-ID: <46781915.4010201@enterprisedb.com> (raw)
In-Reply-To: <cone.1182267949.154012.90929.5001@35st.simplicato.com>
References: <4676DD57.7070304@metacarta.com>
	<14291.1182221811@sss.pgh.pa.us>
	<4677B831.8060704@metacarta.com>
	<4677D298.2010109@metacarta.com>
	<20070619132643.GC4265@alvh.no-ip.org>
	<4677DC06.3000300@metacarta.com>
	<20070619134637.GG4265@alvh.no-ip.org>
	<cone.1182267949.154012.90929.5001@35st.simplicato.com>

Francisco Reyes wrote:

> I have a setup with several databases (the largest of which is 1TB 
> database) and I do a nightly vacuum analyze for ALL databases. It takes 
> about 22 hours. And this is with constant updates to the large 1TB 
> database. This is with Postgresql 8.1.3

22h nightly? Wow, you have long nights ;-).

On a serious note, the index vacuum improvements in 8.2 might help you 
to cut that down. You seem to be happy with your setup, but I thought 
I'd mention it..

-- 
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com



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