[rabbitmq-discuss] Multicasting

Matthias Radestock matthias at lshift.net
Tue May 5 09:54:52 BST 2009


bradford cross wrote:
> My requirement is to have two parallel (forked, or whatever) queues, one 
> of which the regular production process listens to, and one of which a 
> backup process listens to.
> Rabbitmq seems to call this sort of thing one-to-many broadcasting and 
> multicast.  There is not a lot of documentation about it, just a blurb 
> here <http://www.rabbitmq.com/faq.html#scenarios> and then the code here 
> -> 
> rabbitmq-java-client-1.5.4/test/src/com/rabbitmq/examples/MulticastMain.java

You may want to read
which is linked to from

Briefly, to get a message sent to multiple queues, bind those queues to 
an exchange using binding keys that match the message's routing key.

Btw, MulticastMain is a fairly universal test program, so it's not 
exactly a concise example of performing simple multicast routing.



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