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From Tim Bain <>
Subject Bridging virtual topics
Date Thu, 21 May 2015 14:44:43 GMT
Researching the question that josealvarado recently posted (,
I came across some seemingly contradictory guidance about how to bridge
virtual topics, and I'm hoping that Dejan (who authored one of the two) or
someone else in the community can reconcile the two.

The bottom of says not
to bridge the consumer queues associated with a virtual destination, to
avoid getting duplicate messages.  This implies that the messages should
traverse the network of brokers on the virtual destination itself, and only
get moved to the consumer queues when they reach the broker to which the
consumer is attached.  (Though I'm not at all clear how things would work
if the subscription was durable and the consumer moved to another broker
after the message went onto the consumer queue on the original broker, but
that's a separate question.)

In his comment when he rejected,
Dejan says what sounds like the opposite: that we should dynamically
include Consumer.> (or Consumer.*.VirtualTopic.>), allowing both the
virtual destination messages and the consumer queue messages to be
forwarded between the brokers.

Are those two statements indeed contradictory?  If not, why not?  If so,
which one's right?


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