Reply-To: <gnanam@zoniac.com>
From: "Gnanakumar" <gnanam@zoniac.com>
To: "'Guillaume Lelarge'" <guillaume@lelarge.info>
Cc: <pgsql-admin@postgresql.org>
References: <007501cad09d$326fefc0$974fcf40$@com>
	<4BB2FA68.6060708@lelarge.info>
	<00b601cad0b0$5e713760$1b53a620$@com>
	<4BB31032.6060809@lelarge.info>
	<00c001cad0b2$a4a89c30$edf9d490$@com>
	<4BB3153F.6010901@lelarge.info>
In-Reply-To: <4BB3153F.6010901@lelarge.info>
Subject: Re: Statistics Collector not collecting server activities
Date: Wed, 31 Mar 2010 16:21:12 +0530
Organization: Zoniac Software Private Limited
Message-ID: <00da01cad0c0$169f3030$43dd9090$@com>
MIME-Version: 1.0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
thread-index: AcrQtDs8eU+ZDZuJQDGlVTNn7mze0gACwXtw
Content-Language: en-us

After restarting PostgreSQL, I can see the following parameters are set =
to
ON:
mydb=3D# show stats_start_collector;
 stats_start_collector
-----------------------
 on
(1 row)

mydb=3D# show stats_start_collector;
 stats_start_collector
-----------------------
 on
(1 row)

mydb=3D# show stats_block_level;
 stats_block_level
-------------------
 on
(1 row)

mydb=3D# show stats_reset_on_server_start;
 stats_reset_on_server_start
-----------------------------
 off
(1 row)

But still, if I query after performing heavy DML operations, I'm always
getting zero, even though there are INSERT/UPDATE/DELETE.
select pg_stat_get_tuples_inserted((select oid from pg_class where =
relname =3D
'mytable'));

Is there any other parameter I'm missing to make this work.

-----Original Message-----
From: Guillaume Lelarge [mailto:guillaume@lelarge.info]=20
Sent: Wednesday, March 31, 2010 2:56 PM
To: gnanam@zoniac.com
Cc: pgsql-admin@postgresql.org
Subject: Re: [ADMIN] Statistics Collector not collecting server =
activities

Le 31/03/2010 11:14, Gnanakumar a =E9crit :
> OK.  I'll try that way.
>=20
> But, as per 8.2 doc, by default it is ON. So if I comment with just =
'#'
> infront of the parameter, and restart PostgreSQL, this change will not =
be
> reflected, which means it should work with default value ON?

Yes, you're right. Maybe you have stats_start_collector at different
places in your postgresql.conf. The last value is used in this case. So
you should better check this.


--=20
Guillaume.
 http://www.postgresqlfr.org
 http://dalibo.com