Re: where is pg_stat_activity (and others) in the documentation?
От | Scott Mead |
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Тема | Re: where is pg_stat_activity (and others) in the documentation? |
Дата | |
Msg-id | AANLkTikoqQ_XENNxKOsVhmWSsdcMbTb+DqVH+NtyXXuj@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: where is pg_stat_activity (and others) in the documentation? (Vick Khera <vivek@khera.org>) |
Ответы |
Re: where is pg_stat_activity (and others) in the documentation?
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Список | pgsql-general |
On Mon, Nov 15, 2010 at 10:03 AM, Vick Khera <vivek@khera.org> wrote:
You can find out exactly what you're waiting for by correlating this to the pg_locks table.
Grab the 'procpid' of your waiting query and run:
select * from pg_locks where pid=<thepid> and granted='f';
Notice, in the pg_locks table, the logic works slightly different... if you're 'waiting' (pg_stat_activity), then you haven't been 'granted' (pg_locks).
As far as documentation: http://www.postgresql.org/docs/current/static/monitoring-stats.html
--Scott
On Mon, Nov 15, 2010 at 5:15 AM, Willy-Bas Loos <willybas@gmail.com> wrote:
> I was looking for what exactly "waiting" means in pg_stat_activity.
You can find out exactly what you're waiting for by correlating this to the pg_locks table.
Grab the 'procpid' of your waiting query and run:
select * from pg_locks where pid=<thepid> and granted='f';
Notice, in the pg_locks table, the logic works slightly different... if you're 'waiting' (pg_stat_activity), then you haven't been 'granted' (pg_locks).
As far as documentation: http://www.postgresql.org/docs/current/static/monitoring-stats.html
--Scott
waiting for a lock.
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