So much zen in so little space.<br><br>Thanks!<br><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Dec 12, 2012 at 9:29 AM, Simon MacMullen <span dir="ltr"><<a href="mailto:simon@rabbitmq.com" target="_blank">simon@rabbitmq.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On 10/12/12 21:17, Matt Pietrek wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I realize this is a somewhat esoteric question and apologize for the<br>
complexity.<br>
</blockquote>
<br></div>
I don't think it's too bad. At least you're clear :-)<div class="im"><br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
We're still on 2.8.7 for a while, although my guess is that<br>
federation in 3.0 won't drastically change the answer.<br>
</blockquote>
<br></div>
Correct.<br>
<br>
<snip><div class="im"><br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I'm trying to understand this behavior. It's almost as if the federation<br>
logic is burrowing underneath my VIP and discovering the actual node<br>
names. In my naive understanding, I'd expect that the use of VIPs would<br>
hide away the primary/alternate nodes.<br>
</blockquote>
<br></div>
This is the "local_nodename". See the documentation at:<br>
<br>
<a href="http://previous.rabbitmq.com/federation.html#configuration" target="_blank">http://previous.rabbitmq.com/<u></u>federation.html#configuration</a><br>
<br>
...in particular "The default is constructed from the Erlang node and the machine's fully-qualified domain name". So it has no idea about the VIP.<br>
<br>
But just setting local_nodename explicitly on all your nodes should sort you out.<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
*Question 2:*<div class="im"><br>
In a related vein, looking at the Exchanges I see exchanges like this:<br>
<br>
federation: skytap -> rabbit@slave A<br>
federation: skytap -> rabbit@slave-alternate B<br>
<br>
What do the A/B signify?<br>
</div></blockquote>
<br>
Internal workings of the federation mechanism ;-)<br>
<br>
See<br>
<br>
<a href="http://hg.rabbitmq.com/rabbitmq-federation/file/d64c99562b9a/README-hacking#l40" target="_blank">http://hg.rabbitmq.com/<u></u>rabbitmq-federation/file/<u></u>d64c99562b9a/README-hacking#<u></u>l40</a><br>
<br>
for a brief explanation.<br>
<br>
Cheers, Simon<span class="HOEnZb"><font color="#888888"><br>
<br>
-- <br>
Simon MacMullen<br>
RabbitMQ, VMware<br>
</font></span></blockquote></div><br></div>