Re: where is pg_stat_activity (and others) in the documentation? - Mailing list pgsql-general

From Scott Mead
Subject Re: where is pg_stat_activity (and others) in the documentation?
Date
Msg-id AANLkTikoqQ_XENNxKOsVhmWSsdcMbTb+DqVH+NtyXXuj@mail.gmail.com
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In response to Re: where is pg_stat_activity (and others) in the documentation?  (Vick Khera <vivek@khera.org>)
Responses Re: where is pg_stat_activity (and others) in the documentation?  (Willy-Bas Loos <willybas@gmail.com>)
List pgsql-general


On Mon, Nov 15, 2010 at 10:03 AM, Vick Khera <vivek@khera.org> wrote:
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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