Re: Reseting statistics, cluster wide

2011/4/22 Mario Splivalo <mario(dot)splivalo(at)megafon(dot)hr>:
> On 04/22/2011 03:20 PM, Cédric Villemain wrote:
>>
>> 2011/4/21 raghu ram<raghuchennuru(at)gmail(dot)com>:
>>>>
>>>> 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.
>>>>
>>>
>>> AFAIK, I dont think we can achieve this in PG 8.4 at cluster level. Can
>>> anybody has the information ?
>>> -- Raghu
>>
>> With 8.4 you only have the pg_stat_reset(), it resets all stats. The
>> finest one in 9.0 is a new feature/improvement.
>
> Yeps, but that is only for database-related statistics. Stuff returned from
> pg_stat_bgwriter view are not reset.

ah yes.
There exist a very brutal way to do it, which will remove all stats.
(you need the server to be down to do that)
move or rm the "global/pgstat.stat" file.

To come back to your original problem : I am surprised you have too
large value for munin, isn't there something to do on the munin side
instead ?

--
Cédric Villemain               2ndQuadrant
http://2ndQuadrant.fr/     PostgreSQL : Expertise, Formation et Support