JMS ReplyTo - RequestQ and ResponseQ are in different Managed Servers

Hopefully this brief summary explains the issue:
1) Two managed servers, ServerA and ServerB
2) ServerA has JMSServerA with ResponseQ (hosted at t3:\\A)
3) ServerB has JMSServerB with RequestQ (hosted at t3::\\B)
a) Standalone JMS client sends message to ServerB RequestQ (t3:\\B) with replyTo field set to ResponseQ hosted by ServerA (t3:\\A)
b) Standalone JMS consumer onMessage() recieves message, extracts replyTo field, uses its Session (that it created off a connection to JMSServerB (t3:\\B), not t3::\\A)
and so when the replyTo message is sent, i.e.
producer = session.createProducer( replyToDestination); // session is created from a connection to B, not A
producer.send( replyMessage )
an exception is generated that says "no available router to destination, . . . "
How is the connection info supposed to be avail to consumer to know how to create a session on a connection to A so that the replyTo destination hosted by A is reachable?
(t3:\\A and t3::\B are notional so you get the idea that different physical connections are being used)
thanks for any insight
-mike

Hi Mike,
It is generally a good goal to try and design applications to be made stateless, so that responses can be processed by any JVM.
Alternatively, if the response message is ephemeral -- only needed for the life of the client JVM - then I would consider using dynamically created JMS temporary queues instead of configured queues, with each client JVM creating a temporary queue when it starts.
Finally, if the responses must be long-lived, and your app can't be stateless, then, in general the easiest approach with a simple distributed response queue is to change the application to create consumers on each member. You can try the co-location approach that you mentioned if its known the app will always be running co-located with the distributed destination member that it works with - this type of approach tends to be incompatible with "service migration" style HA.
Hope this helps,
Tom

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JMS ReplyTo - RequestQ and ResponseQ are in different Managed Servers

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