Re: [HACKERS] More detail on settings for pgavd?

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От Alvaro Herrera Munoz
Тема Re: [HACKERS] More detail on settings for pgavd?
Дата
Msg-id 20031122144637.GC6016@dcc.uchile.cl
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Ответ на Re: [HACKERS] More detail on settings for pgavd?  ("Matthew T. O'Connor" <matthew@zeut.net>)
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On Fri, Nov 21, 2003 at 04:24:25PM -0500, Matthew T. O'Connor wrote:

> I don't want to add tables to existing databases, as I consider that
> clutter and I never like using tools that clutter my production
> databases.  [...]
>
> Actually, this might be a necessary addition as pg_autovacuum currently
> suffers from the startup transients that the FSM used to suffer from,
> that is, it doesn't remember anything that happened the last time it
> ran.  A pg_autovacuum database could also be used to store thresholds
> and counts from the last time it ran.

You could use the same approach the FSM uses: keep a file with the data,
PGDATA/base/global/pg_fsm.cache.  You don't need the data to be in a table
after all ...

--
Alvaro Herrera (<alvherre[@]dcc.uchile.cl>)
Essentially, you're proposing Kevlar shoes as a solution for the problem
that you want to walk around carrying a loaded gun aimed at your foot.
(Tom Lane)

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