Return-Path: Delivered-To: apmail-activemq-users-archive@www.apache.org Received: (qmail 38819 invoked from network); 21 Mar 2011 16:49:03 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 21 Mar 2011 16:49:03 -0000 Received: (qmail 85433 invoked by uid 500); 21 Mar 2011 16:49:03 -0000 Delivered-To: apmail-activemq-users-archive@activemq.apache.org Received: (qmail 85398 invoked by uid 500); 21 Mar 2011 16:49:02 -0000 Mailing-List: contact users-help@activemq.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: users@activemq.apache.org Delivered-To: mailing list users@activemq.apache.org Received: (qmail 85390 invoked by uid 99); 21 Mar 2011 16:49:02 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 21 Mar 2011 16:49:02 +0000 X-ASF-Spam-Status: No, hits=2.9 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_NONE,RFC_ABUSE_POST,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of patzerbud@hotmail.com designates 65.55.90.234 as permitted sender) Received: from [65.55.90.234] (HELO snt0-omc4-s31.snt0.hotmail.com) (65.55.90.234) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 21 Mar 2011 16:48:53 +0000 Received: from SNT105-W26 ([65.55.90.200]) by snt0-omc4-s31.snt0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Mon, 21 Mar 2011 09:48:32 -0700 Message-ID: Content-Type: multipart/alternative; boundary="_70d79b83-53c3-4a41-b1a8-194e7757c063_" X-Originating-IP: [207.250.200.178] From: Mike L. To: Subject: Duplicate Messages Date: Mon, 21 Mar 2011 11:48:32 -0500 Importance: Normal MIME-Version: 1.0 X-OriginalArrivalTime: 21 Mar 2011 16:48:32.0420 (UTC) FILETIME=[D00D8640:01CBE7E7] X-Virus-Checked: Checked by ClamAV on apache.org --_70d79b83-53c3-4a41-b1a8-194e7757c063_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable All: I have a shared nothing master/slave configuration using ActiveMQ 5.3.1. Recently the two nodes lost connectivity (see my previous post "Network Con= nector failures"). 849 messages were published during the 70 seconds when t= he two nodes lost connectivity. All 849 messages were apparently republishe= d (and were therefore reprocessed) within the next several minutes. If anyone knows why/how duplicate messages might get published and/or has s= uggestions for preventing this I would be very grateful! TIA=2C Mike L. (aka patzerbud) = --_70d79b83-53c3-4a41-b1a8-194e7757c063_--