Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1a79zs-0004N0-Gi for pgsql-performance@arkaria.postgresql.org; Thu, 10 Dec 2015 22:47:36 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84) (envelope-from ) id 1a79zr-00048Y-W0 for pgsql-performance@arkaria.postgresql.org; Thu, 10 Dec 2015 22:47:36 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84) (envelope-from ) id 1a79yD-0000sx-Qz for pgsql-performance@postgresql.org; Thu, 10 Dec 2015 22:45:53 +0000 Received: from out.smtp-auth.no-ip.com ([8.23.224.60]) by magus.postgresql.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.84) (envelope-from ) id 1a79y6-0004DF-4K for pgsql-performance@postgresql.org; Thu, 10 Dec 2015 22:45:53 +0000 X-No-IP: alvh.no-ip.org@noip-smtp X-Report-Spam-To: abuse@no-ip.com Received: from alvin.alvh.no-ip.org (unknown [200.104.53.52]) (Authenticated sender: alvh.no-ip.org@noip-smtp) by smtp-auth.no-ip.com (Postfix) with ESMTPA id D9DC2401202; Thu, 10 Dec 2015 14:45:42 -0800 (PST) Received: by alvin.alvh.no-ip.org (Postfix, from userid 1000) id 219841EE9; Thu, 10 Dec 2015 19:45:41 -0300 (CLT) Date: Thu, 10 Dec 2015 19:45:41 -0300 From: Alvaro Herrera To: Tomas Vondra Cc: pgsql-performance@postgresql.org Subject: Re: checkpoints, proper config Message-ID: <20151210224541.GQ2763@alvherre.pgsql> References: <5669B47B.9010504@commandprompt.com> <5669FF52.2030303@2ndquadrant.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <5669FF52.2030303@2ndquadrant.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Pg-Spam-Score: -2.6 (--) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-performance Precedence: bulk Sender: pgsql-performance-owner@postgresql.org Tomas Vondra wrote: > Also, I don't think it makes much sense to set > > (checkpoint_warning > checkpoint_timeout) > > as it kinda defeats the whole purpose of the warning. I agree, but actually, what is the sense of checkpoint_warning? I think it was useful back when we didn't have log_checkpoints, but now that we have detailed checkpoint logging I think it's pretty much useless noise. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance