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On 10/16/2012 04:34 PM, Richard Urwin wrote:
<blockquote cite="mid:09ea01cdabb3$cc78b1d0$656a1570$@psonar.com"
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<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!</p>
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</blockquote>
<br>
You're welcome - I had to think a bit longer about this second one
though! ;)<br>
<br>
<blockquote cite="mid:09ea01cdabb3$cc78b1d0$656a1570$@psonar.com"
type="cite">
<div class="WordSection1">
<p class="MsoNormal"><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>
</div>
</blockquote>
<br>
Great!<br>
<br>
<blockquote cite="mid:09ea01cdabb3$cc78b1d0$656a1570$@psonar.com"
type="cite">
<div class="WordSection1">
<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>
</div>
</blockquote>
<br>
Hmn. If you set these net_kernel parameters for an Erlang node, then
you need to restart epmd on that host IIRC. The routing is usually
thus<br>
<br>
$ rabbitmqctl stop<br>
$ epmd -names<br>
epmd: up and running on port 4369 with data:<br>
$ epmd -kill<br>
<br>
Then restart your rabbit (on that node!) and you *should* be good to
go. Note that if `epmd -names` returns some running erlang nodes on
that host then you'll need to stop/kill them before stopping epmd
itself.<br>
<br>
Cheers,<br>
Tim
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