Re: Reseting statistics, cluster wide

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От Mario Splivalo
Тема Re: Reseting statistics, cluster wide
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Msg-id 4DAFE1F0.6030508@megafon.hr
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Ответ на Re: Reseting statistics, cluster wide  (raghu ram <raghuchennuru@gmail.com>)
Ответы Re: Reseting statistics, cluster wide  (raghu ram <raghuchennuru@gmail.com>)
Список pgsql-admin
On 04/20/2011 10:49 PM, raghu ram wrote:
> On Thu, Apr 21, 2011 at 1:01 AM, Mario Splivalo
> <mario.splivalo@megafon.hr <mailto:mario.splivalo@megafon.hr>> wrote:
>     I have set up munin monitoring that plots nice graphs using
>     pg_stat_bgwriter and pg_stat_database views. It has been on for
>     quite some time now, and the numbers those views return are too big
>     for munin to handle. I would like to reset those statistics. As
>     explained by manual, pg_stat_reset() resets only db-related
>     statistics, not the ones used cluster-wide. Is there a way to reset
>     those? I don't mind stopping the server if I need to, but I'd realy
>     like to have those started all over again.
> Currently we don't have such feature to reset statistics on cluster
> level. You have to use two PostgreSQL functions like
> pg_stat_reset_shared(text), pg_stat_reset ().
> There are a few statistics that are only kept on a per-cluster basis,
> such as those reported in pg_stat_database and pg_stat_bgwriter. Since
> pg_stat_reset only resets per-database statistics.
>
>
> psql=# select pg_stat_reset();
>
>
> psql=# select pg_stat_reset_shared('bgwritter');  -- It will reset the
> statistics shown by pg_stat_bgwritter.
>

Heh, I've neglected to mention that i'm using postgres 8.4.5 on Debian
Stable. Is there a way to reset statistics on pg8.4? I've tested it on
9.0 and it works there.

    Mario

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