X-Original-To: pgsql-performance-postgresql.org@postgresql.org Received: from localhost (mx1.hub.org [200.46.208.251]) by postgresql.org (Postfix) with ESMTP id 35BAA9FB404 for ; Thu, 13 Jul 2006 10:54:43 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.208.251]) (amavisd-new, port 10024) with ESMTP id 93584-03 for ; Thu, 13 Jul 2006 10:54:38 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from tigger.fuhr.org (tigger.fuhr.org [63.214.45.158]) by postgresql.org (Postfix) with ESMTP id 0B1909FB412 for ; Thu, 13 Jul 2006 10:54:38 -0300 (ADT) Received: from winnie.fuhr.org (winnie.fuhr.org [10.1.0.1]) by tigger.fuhr.org (8.13.7/8.13.7) with ESMTP id k6DDsL3T099428 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 13 Jul 2006 07:54:24 -0600 (MDT) Received: from winnie.fuhr.org (localhost [127.0.0.1]) by winnie.fuhr.org (8.13.6/8.13.6) with ESMTP id k6DDsLB7085028; Thu, 13 Jul 2006 07:54:21 -0600 (MDT) (envelope-from mfuhr@winnie.fuhr.org) Received: (from mfuhr@localhost) by winnie.fuhr.org (8.13.6/8.13.6/Submit) id k6DDsLGQ085027; Thu, 13 Jul 2006 07:54:21 -0600 (MDT) (envelope-from mfuhr) Date: Thu, 13 Jul 2006 07:54:21 -0600 From: Michael Fuhr To: Medora Schauer Cc: Bruno Wolff III , postgresql Subject: Re: hyper slow after upgrade to 8.1.4 Message-ID: <20060713135421.GA79008@winnie.fuhr.org> References: <1CA058827877644DAB54FB930FFA3B05A67A7A@lincoln.FAIRIND.FAIRFIELD.COM> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1CA058827877644DAB54FB930FFA3B05A67A7A@lincoln.FAIRIND.FAIRFIELD.COM> X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200607/131 X-Sequence-Number: 19991 On Thu, Jul 13, 2006 at 08:22:46AM -0500, Medora Schauer wrote: > Can it be that the connection delay is because first an IPv6 socket is > trying to be established and when that fails an IPv4 socket is created? A sniffer like tcpdump or ethereal might reveal why connecting is so slow. The problem might be with DNS queries for AAAA (IPv6) records prior to queries for A (IPv4) records; see this thread from almost a year ago: http://archives.postgresql.org/pgsql-general/2005-08/msg00216.php -- Michael Fuhr