<html><head></head><body bgcolor="#FFFFFF"><div>Hi</div><div><br>On 16 Oct 2012, at 13:46, "Richard Urwin" <<a href="mailto:richard@psonar.com">richard@psonar.com</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="Generator" content="Microsoft Word 14 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--><div class="WordSection1"><p class="MsoNormal">Hi everyone,<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p></div></div></blockquote><div><br></div><div>Snip</div><div><br></div><blockquote type="cite"><div><div class="WordSection1"><font class="Apple-style-span" color="#000000"><br></font><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></div></blockquote><div><br></div><div>Ok but what do those rabbits think the node names are?</div><br><blockquote type="cite"><div><div class="WordSection1"><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></blockquote><div><br></div><div>That doesn't mean that erlang knows the nodes as rabbit@rabbit2 though.</div><br><blockquote type="cite"><div><div class="WordSection1"><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></blockquote><div><br></div><div>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.</div><br><blockquote type="cite"><div><div class="WordSection1"><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></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>rabbitmq-discuss mailing list</span><br><span><a href="mailto:rabbitmq-discuss@lists.rabbitmq.com">rabbitmq-discuss@lists.rabbitmq.com</a></span><br><span><a href="https://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss">https://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss</a></span><br></div></blockquote></body></html>