On Thu, Apr 21, 2011 at 1:01 AM, Mario Splivalo
<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.
--Raghu Ram
Mario
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