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Re: max_fsm_pages question

From: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
To: "Michael Monnerie" <michael(dot)monnerie(at)is(dot)it-management(dot)at>
Cc: <pgsql-admin(at)postgresql(dot)org>
Subject: Re: max_fsm_pages question
Date: 2010-01-25 15:03:46
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Lists: pgsql-admin
Michael Monnerie <michael(dot)monnerie(at)is(dot)it-management(dot)at> wrote: 
> So, as there was that one relation that was bloatet - how could it
> be?  Autovaccuum, nightly vacuum analyze, weekly cluster - and
> still a heavy bloated toast* something. I must do something wrong.
Any chance you had or have long-running transactions.  We once had
very low free space in a big database which suddenly ballooned.  It
turned out an application programmer had left a connection in "idle
in transaction" state for a few days.
Another possibility is that you had an update or delete which
affected a lot of rows.  Even if it rolls back, it can cause bloat.

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