From users-return-7047-apmail-qpid-users-archive=qpid.apache.org@qpid.apache.org Fri Oct 5 10:01:07 2012 Return-Path: X-Original-To: apmail-qpid-users-archive@www.apache.org Delivered-To: apmail-qpid-users-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 483179EF7 for ; Fri, 5 Oct 2012 10:01:07 +0000 (UTC) Received: (qmail 37279 invoked by uid 500); 5 Oct 2012 10:01:07 -0000 Delivered-To: apmail-qpid-users-archive@qpid.apache.org Received: (qmail 37173 invoked by uid 500); 5 Oct 2012 10:01:06 -0000 Mailing-List: contact users-help@qpid.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: users@qpid.apache.org Delivered-To: mailing list users@qpid.apache.org Received: (qmail 37145 invoked by uid 99); 5 Oct 2012 10:01:05 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 05 Oct 2012 10:01:05 +0000 X-ASF-Spam-Status: No, hits=-5.0 required=5.0 tests=RCVD_IN_DNSWL_HI,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of gsim@redhat.com designates 209.132.183.28 as permitted sender) Received: from [209.132.183.28] (HELO mx1.redhat.com) (209.132.183.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 05 Oct 2012 10:00:59 +0000 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id q95A0bqP009575 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Fri, 5 Oct 2012 06:00:37 -0400 Received: from [10.36.116.44] (ovpn-116-44.ams2.redhat.com [10.36.116.44]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id q95A0Xc0031659 for ; Fri, 5 Oct 2012 06:00:35 -0400 Message-ID: <506EB071.7070108@redhat.com> Date: Fri, 05 Oct 2012 11:03:29 +0100 From: Gordon Sim Organization: Red Hat UK Ltd, Registered in England and Wales under Company Registration No. 3798903, Directors: Michael Cunningham (USA), Mark Hegarty (Ireland), Matt Parsons (USA), Charlie Peters (USA) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120717 Thunderbird/14.0 MIME-Version: 1.0 To: users@qpid.apache.org Subject: Re: qpid async replication and failover References: <506E8670.2040608@redhat.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 On 10/05/2012 10:40 AM, Terance Dias wrote: > Thanks a lot for your reply Gordon. > > We are using the replication described at http://qpid.apache.org/books/** > trunk/AMQP-Messaging-Broker-**CPP-Book/html/queue-state-**replication.html > . > We are running on Ubuntu. Ok, that certainly seems to have rgmanager: http://manpages.ubuntu.com/manpages/precise/man8/rgmanager.8.html > > We decided to go with this kind of replication because it allowed HA > solution across networks. Does the new mechanism work across networks or > are the nodes required to be in the same network? No. The replication in the new HA scheme is done over AMQP (over inter-broker aka 'federation' links). > Also, I'm new to Linux. So I just wanted to know how rgmanager works. Does > it run on a separate node and monitors the cluster nodes? In that case can > it be a single point of failure? No, I believe it runs on all the nodes participating in the cluster. These daemons all communicate such that they can determine when one node is 'down', shut it out the system and attempt to recover it. > Also, Please let me know if you know if anybody has deployed the new > cluster mechanism in production. No, I don;t think so yet. Though it is undergoing testing right now by an actual project. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@qpid.apache.org For additional commands, e-mail: users-help@qpid.apache.org