Received: from localhost (unknown [200.46.208.211]) by mail.postgresql.org (Postfix) with ESMTP id 12AE86348D5 for ; Wed, 11 Mar 2009 17:46:19 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.208.211]) (amavisd-maia, port 10024) with ESMTP id 88764-08 for ; Wed, 11 Mar 2009 17:46:12 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by mail.postgresql.org (Postfix) with ESMTP id B26196346E1 for ; Wed, 11 Mar 2009 17:46:11 -0300 (ADT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.2/8.14.2) with ESMTP id n2BKkAS2003402; Wed, 11 Mar 2009 16:46:10 -0400 (EDT) To: Frank Joerdens cc: pgsql-performance@postgresql.org, Nic Ferrier , Avleen Vig , Mike Rogers Subject: Re: Full statement logging problematic on larger machines? In-reply-to: <7d10d2df0903111227g2e40e742g5992cba5158dd4d2@mail.gmail.com> References: <7d10d2df0903111227g2e40e742g5992cba5158dd4d2@mail.gmail.com> Comments: In-reply-to Frank Joerdens message dated "Wed, 11 Mar 2009 19:27:10 -0000" Date: Wed, 11 Mar 2009 16:46:10 -0400 Message-ID: <3401.1236804370@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0 tagged_above=0 required=5 tests=none X-Spam-Level: X-Archive-Number: 200903/104 X-Sequence-Number: 33026 Frank Joerdens writes: > Greetings. We're having trouble with full logging since we moved from > an 8-core server with 16 GB memory to a machine with double that > spec and I am wondering if this *should* be working or if there is a > point on larger machines where logging and scheduling seeks of > background writes - or something along those lines; it might be a > theory - doesn't work together any more? You didn't tell us anything interesting about *how* you are logging, so it's hard to comment on this. Are you just writing to stderr? syslog? using PG's built-in log capture process? It would be good to show all of your log-related postgresql.conf settings. regards, tom lane