Re: max_fsm_pages question

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От Kevin Grittner
Тема Re: max_fsm_pages question
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Msg-id 4B5D5E72020000250002EB64@gw.wicourts.gov
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Ответ на Re: max_fsm_pages question  (Michael Monnerie <michael.monnerie@is.it-management.at>)
Ответы Re: max_fsm_pages question  (Michael Monnerie <michael.monnerie@is.it-management.at>)
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Michael Monnerie <michael.monnerie@is.it-management.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.

-Kevin

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