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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi Tim,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks for the rapid response!<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>OK, so I added the following into each hosts file:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>IP-0AF23E1E 10.XX.XX.XX<o:p></o:p></p><p class=MsoNormal>IP-0AD25792 10.XX.XX.XX<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The names now match everywhere and are correctly mapped to the private IPs.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Now when I run:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>C:\Program Files (x86)\RabbitMQ Server\rabbitmq_server-2.8.7\sbin>rabbitmqctl cluster rabbit@IP-0AF23E1E<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have success:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Clustering node 'rabbit@IP-0AD25792' with ['rabbit@IP-0AF23E1E'] ...<o:p></o:p></p><p class=MsoNormal>...done.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>…and checking the cluster status with:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>C:\Program Files (x86)\RabbitMQ Server\rabbitmq_server-2.8.7\sbin>rabbitmqctl cluster_status<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>…gives:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Cluster status of node 'rabbit@IP-0AD25792' ...<o:p></o:p></p><p class=MsoNormal>[{nodes,[{disc,['rabbit@IP-0AF23E1E']},{ram,['rabbit@IP-0AD25792']}]},<o:p></o:p></p><p class=MsoNormal> {running_nodes,['rabbit@IP-0AF23E1E','rabbit@IP-0AD25792']}]<o:p></o:p></p><p class=MsoNormal>...done.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>BUT:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I had to open all of the ports within the EC2 security group and Windows firewall.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>As mentioned, I have this (and only this) in my rabbit.config:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>[{kernel, [{inet_dist_listen_min, 55700}, {inet_dist_listen_max, 55800}]}].<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>But it doesn’t appear to be restricting the ports (since when I restrict the firewalls back to that range, it can’t cluster.)<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Can you see what’s wrong?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal>Rich<o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:EN-GB'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:EN-GB'> rabbitmq-discuss-bounces@lists.rabbitmq.com [mailto:rabbitmq-discuss-bounces@lists.rabbitmq.com] <b>On Behalf Of </b>Tim Watson<br><b>Sent:</b> 16 October 2012 15:29<br><b>To:</b> Discussions about RabbitMQ<br><b>Cc:</b> <rabbitmq-discuss@lists.rabbitmq.com><br><b>Subject:</b> Re: [rabbitmq-discuss] Problem with RabbitMQ HA cluster on EC2 (Windows)<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hi<o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><br>On 16 Oct 2012, at 13:46, "Richard Urwin" <<a href="mailto:richard@psonar.com">richard@psonar.com</a>> wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal>Hi everyone,<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p></div></blockquote><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB'>Snip<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB'><o:p> </o:p></span></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB'><o:p> </o:p></span></p><p class=MsoNormal>The problem is when attempting to cluster. Running the command:<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoListParagraph>C:\Program Files (x86)\RabbitMQ Server\rabbitmq_server-2.8.7\sbin>rabbitmqctl cluster <a href="mailto:rabbit@ec2-XX-XX-XX-XX.compute-1.amazonaws.com">rabbit@ec2-XX-XX-XX-XX.compute-1.amazonaws.com</a><o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>I get the result:<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal style='text-indent:36.0pt'>Clustering node 'rabbit@IP-0XXXXXXX' with ['rabbit@ec2- <a href="http://XX-XX-XX-XX.compute-1.amazonaws.com">XX-XX-XX-XX.compute-1.amazonaws.com</a>'] ...<o:p></o:p></p><p class=MsoNormal style='text-indent:36.0pt'>Error: {no_running_cluster_nodes,['rabbit@ec2- <a href="http://XX-XX-XX-XX.compute-1.amazonaws.com">XX-XX-XX-XX.compute-1.amazonaws.com</a>'], ['rabbit@ec2- <a href="http://XX-XX-XX-XX.compute-1.amazonaws.com">XX-XX-XX-XX.compute-1.amazonaws.com</a>']}<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>I think this is because I’m attempting to use the EC2 Public DNS.<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>I then added mappings to my hosts file, to map to my two instances:<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal style='text-indent:36.0pt'>10.XXX.XX.XX rabbit01 # Public DNS: <a href="http://ec2-XX-XX-XX-XX.compute-1.amazonaws.com">ec2-XX-XX-XX-XX.compute-1.amazonaws.com</a><o:p></o:p></p><p class=MsoNormal style='text-indent:36.0pt'>10.XXX.XX.XX rabbit02 # Public DNS: <a href="http://ec2-XX-XX-XX-XX.compute-1.amazonaws.com">ec2-XX-XX-XX-XX.compute-1.amazonaws.com</a><o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Running the command (with different hostname):<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal style='text-indent:36.0pt'>C:\Program Files (x86)\RabbitMQ Server\rabbitmq_server-2.8.7\sbin>rabbitmqctl cluster <a href="mailto:rabbit@ec2-XX-XX-XX-XX.compute-1.amazonaws.com">rabbit@rabbit02</a><o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>I get the same result:<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal style='text-indent:36.0pt'>Clustering node 'rabbit@ IP-0AAXXXXX’ with [rabbit@rabbit02] ...<o:p></o:p></p><p class=MsoNormal style='text-indent:36.0pt'>Error: {no_running_cluster_nodes,[rabbit@rabbit02],[rabbit@rabbit02]}<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p></div></blockquote><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB'>Ok but what do those rabbits think the node names are?<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB'><br><br><o:p></o:p></span></p><div><p class=MsoNormal>I know this mapping can be used to access the other Windows computer, because I can use it to access the management console in a web browser:<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal style='text-indent:36.0pt'><a href="http://rabbit02:55672/#/">http://rabbit02:55672/#/</a><o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB'>That doesn't mean that erlang knows the nodes as rabbit@rabbit2 though.<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB'><br><br><o:p></o:p></span></p><div><p class=MsoNormal>I then tried to change the computer name from IP-0AAXXXXX to rabbit01 (in case this was a problem) but upon reboot, it hadn’t changed. <o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB'>When you start rabbit on the host, run rabbitmqctl status on the host itself and see what the node name looks like. This needs to match up so that all the nodes have a consistent view of the names. I would expect some /etc/hosts configuration to solve any naming difficulties. Remember that rabbit uses short names (without the domain) by default.<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB'><br><br><o:p></o:p></span></p><div><p class=MsoNormal>Does anyone have any suggestions?<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal><span style='mso-fareast-language:EN-GB'>Rich</span><o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB'>_______________________________________________<br>rabbitmq-discuss mailing list<br><a href="mailto:rabbitmq-discuss@lists.rabbitmq.com">rabbitmq-discuss@lists.rabbitmq.com</a><br><a href="https://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss">https://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss</a><o:p></o:p></span></p></div></blockquote></div></body></html>