It suddenly clicked, thank you.<div>I had in my mind the model of database log-shipping, which was incorrect.</div><div><br></div><div>On a tangential albeit related note, can anyone suggest an approach for rigging up a load balancer in a development environment in order that I may test out my application and HA cluster?</div>
<div>I currently have a number of VMs running RMQ in the cluster (several instances of VMWare player running Ubunto 10.10 as I preferred�modelling�the ultimate production scenario rather than setting up a single machine cluster)</div>
<div>Is there a simple load balancing virtual appliance that can be used in the same manner, and will this open up a networking can of worms? (I'm predominately a software tech rather than a networker)</div><div><br></div>
<div>Steve</div><div><br><div class="gmail_quote">On 8 September 2011 15:03, Matthew Sackman <span dir="ltr"><<a href="mailto:matthew@rabbitmq.com">matthew@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 Thu, Sep 08, 2011 at 06:40:19AM -0700, Steve Martin wrote:<br>
> I, too, would like to echo John's initial query.<br>
> I have an active/active HA cluster and would like to seek some<br>
> guidance on how best to configure my system with regards to how to<br>
> know where to publish to/consume from.<br>
> If the master fails and a slave is promoted, how do I know what the<br>
> new master is or can I publish to the slave (my thoughts are no but I<br>
> have to ask)?<br>
<br>
</div>You can publish from _any_ node in the cluster. It doesn't matter. The<br>
nodes in the cluster know where the master is and will forward<br>
publications internally.<br>
<font color="#888888"><br>
Matthew<br>
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