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Re: Index bloat, reindex weekly, suggestions etc?

From: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
To: "Tory M Blue" <tmblue(at)gmail(dot)com>,<pgsql-performance(at)postgresql(dot)org>
Subject: Re: Index bloat, reindex weekly, suggestions etc?
Date: 2008-10-17 16:30:07
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-performance
>>> "Tory M Blue" <tmblue(at)gmail(dot)com> wrote: 
> tell me if i should plan upgrades to 8.3.4..
It's a good idea.  It should be painless -- drop in and restart.
> After Reindex
> My Indexes
> 1.5G    /data/clsindex
> After 2 weeks
> My indexes
> 6.8G    /data/clsindex
> This is 2 weeks. and throughout those  2 weeks I can see performance
> degrading. In fact I just bumped the memory footprint of my server
> 32gigs from 8gigs
Make sure that effective_cache_size reflects this.
> This is a transactional DB with over 800K updates happening each
> tons of updates and deletes. autovac is on and I do a analyze each
> night after the dump
Make sure that you run as VACUUM ANALYZE VERBOSE and look at the last
few lines; you might need to increase your free space manager

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