Re: autovacumm not working ?

From: Tomasz Rakowski <mourawi(at)yahoo(dot)com>
To: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
Cc: "Matthew T(dot) O'Connor" <matthew(at)zeut(dot)net>, pgsql-general(at)postgresql(dot)org
Subject: Re: autovacumm not working ?
Date: 2007-06-27 22:46:06
Message-ID: 20070627224606.59577.qmail@web37115.mail.mud.yahoo.com
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Alvaro,

I changed autovacuum parametrs for this specific table in pg_autovacuum

insert into pg_autovacuum (vacrelid,enabled,vac_base_thresh, vac_scale_factor, anl_base_thresh, anl_scale_factor,
vac_cost_delay, vac_cost_limit, freeze_min_age, freeze_max_age)
values ( (select oid from pg_class where relname='t_ais_position'), True, 100, 0.01 , 100, 0.02, -1, -1, -1, -1 )

Should I somehow let autovacuum deamon know about new table configuration or above insert is enough ?

Tomasz

----- Original Message ----
From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Tomasz Rakowski <mourawi(at)yahoo(dot)com>
Cc: Matthew T. O'Connor <matthew(at)zeut(dot)net>; pgsql-general(at)postgresql(dot)org
Sent: Wednesday, June 27, 2007 2:50:40 PM
Subject: Re: [GENERAL] autovacumm not working ?

Tomasz Rakowski wrote:
> Matthew,
>
> Thank you for reply.
>
> I was trying to configure autovacuum for given table to be more aggressive (min=100, scale factor=0.01).
> Then waited for autovacuum to be activated for given table
> (watching Server status window; about 1000 updates/min, 30.000 rows
> in the table, so didn't have to wait too long).

Did you reload (pg_ctl reload) after changing the postgresql.conf
settings? Also note that you can alter values for a specific table by
putting them in the pg_autovacuum table.

--
Alvaro Herrera http://www.amazon.com/gp/registry/5ZYLFMCVHXC
"I am amazed at [the pgsql-sql] mailing list for the wonderful support, and
lack of hesitasion in answering a lost soul's question, I just wished the rest
of the mailing list could be like this." (Fotis)
(http://archives.postgresql.org/pgsql-sql/2006-06/msg00265.php)


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