Re: checkpoint segments - Mailing list pgsql-general

From Bruce Momjian
Subject Re: checkpoint segments
Date
Msg-id 200507092305.j69N5DG00425@candle.pha.pa.us
Whole thread Raw
In response to checkpoint segments  (Havasvölgyi Ottó <h.otto@freemail.hu>)
Responses Update more than one table
List pgsql-general
There was a problem with this setting that it reports during shutdown
when in fact it should ignore shutdown checkpoints.  This is fixed in 8.1.

---------------------------------------------------------------------------

Havasv�lgyi Ott� wrote:
> Hi,
>
> I have a small database on my Windows XP, I rarely use it. Even so, the log
> file show says this:
>
> [2005-07-02 02:02:09] LOG:  received fast shutdown request
>
>  [2005-07-02 02:02:09] LOG:  checkpoints are occurring too frequently (0
> seconds apart)
>
>  [2005-07-02 02:02:09] HINT:  Consider increasing the configuration
> parameter "checkpoint_segments".
>
>  [2005-07-02 02:02:09] LOG:  shutting down
>
>  [2005-07-02 02:02:10] LOG:  database system is shut down
>
>  [2005-07-02 02:02:13] LOG:  logger shutting down
>
>
> My checkpoint_segments setting is default, 3, and there are 2 wal log files.
> Why does it say, that "too frequenty"?
> In fact what are checkpoints? These files? I couldn't understand it exactly
> from the docs.
>
> Thanks,
> Otto
>
>
>
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