Received: from magus.postgresql.org ([87.238.57.229]) by malur.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1T2Qjy-00023E-Qy for pgsql-performance@postgresql.org; Fri, 17 Aug 2012 17:53:46 +0000 Received: from sam.nabble.com ([216.139.236.26]) by magus.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1T2Qjt-0008SV-QP for pgsql-performance@postgresql.org; Fri, 17 Aug 2012 17:53:45 +0000 Received: from [192.168.236.26] (helo=sam.nabble.com) by sam.nabble.com with esmtp (Exim 4.72) (envelope-from ) id 1T2Qjr-0003Ev-CJ for pgsql-performance@postgresql.org; Fri, 17 Aug 2012 10:53:39 -0700 Date: Fri, 17 Aug 2012 10:53:39 -0700 (PDT) From: delongboy To: pgsql-performance@postgresql.org Message-ID: <1345226019192-5720250.post@n5.nabble.com> In-Reply-To: <801082735.54549.1345215661255.JavaMail.root@agliodbs.com> References: <385621813.89890122.1344620116156.JavaMail.root@email> <5029A543.4090503@agliodbs.com> <1345134711660-5720136.post@n5.nabble.com> <801082735.54549.1345215661255.JavaMail.root@agliodbs.com> Subject: Re: Increasing WAL usage followed by sudden drop MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Pg-Spam-Score: -0.1 (/) X-Archive-Number: 201208/120 X-Sequence-Number: 47658 Josh Berkus wrote > >> We are not doing anything to postgres that would cause the rise and >> drop. >> Data base activity is pretty consistent. nor are we doing any kind >> of >> purge. This week the drop occurred after 6 days. We are thinking it >> must >> be some kind of internal postgres activity but we can't track it >> down. > > Well, we certainly can't figure it out on this list by blind guessing ... > Have to agree with you there. Unfortunately this is where we've ended up. What can we look at and/or show that would help us to narrow it down? Is there anyway we can look into the wal file and see exactly what is being sent? I think this might actually give us the most insight. -- View this message in context: http://postgresql.1045698.n5.nabble.com/Increasing-WAL-usage-followed-by-sudden-drop-tp5719567p5720250.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com.