X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id AD6639DD6B6 for ; Thu, 1 Dec 2005 17:17:46 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 86645-07 for ; Thu, 1 Dec 2005 17:17:41 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey- Received: from mx2.surnet.cl (mx2.surnet.cl [216.155.73.181]) by postgresql.org (Postfix) with ESMTP id B3D389DD626 for ; Thu, 1 Dec 2005 17:17:41 -0400 (AST) Received: from unknown (HELO cluster.surnet.cl) ([216.155.73.165]) by mx2.surnet.cl with ESMTP; 01 Dec 2005 18:14:54 -0300 X-IronPort-AV: i="3.99,202,1131332400"; d="scan'208"; a="1356226:sNHT5346314052" Received: from alvh.no-ip.org (201.220.122.225) by cluster.surnet.cl (7.0.043) (authenticated as alvherre@surnet.cl) id 438E66E80001E801; Thu, 1 Dec 2005 18:15:29 -0300 Received: by alvh.no-ip.org (Postfix, from userid 1000) id DADDBC26462; Thu, 1 Dec 2005 18:16:04 -0300 (CLST) Date: Thu, 1 Dec 2005 18:16:04 -0300 From: Alvaro Herrera To: me@alternize.com Cc: Michael Riess , pgsql-performance@postgresql.org Subject: Re: 15,000 tables Message-ID: <20051201211604.GA6375@surnet.cl> Mail-Followup-To: me@alternize.com, Michael Riess , pgsql-performance@postgresql.org References: <06f401c5f699$bbae2af0$0201a8c0@iwing> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <06f401c5f699$bbae2af0$0201a8c0@iwing> User-Agent: Mutt/1.5.11 X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=1.66 required=5 tests=[AWL=-0.259, DNS_FROM_RFC_ABUSE=0.479, DNS_FROM_RFC_POST=1.44] X-Spam-Score: 1.66 X-Spam-Level: * X-Archive-Number: 200512/44 X-Sequence-Number: 15865 me@alternize.com wrote: > what i noticed is autovacuum not working properly as it should. i had 8.1 > running with autovacuum for just 2 days or so and got warnings in pgadmin > that my tables would need an vacuum. Hum, so how is autovacuum's documentation lacking? Please read it critically and let us know so we can improve it. http://www.postgresql.org/docs/8.1/static/maintenance.html#AUTOVACUUM Maybe what you need is to lower the "vacuum base threshold" for tables that are small. -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support