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From artnaseef <>
Subject Re: ActiveMQ broker automatically move messages with same JMSXGroupID to DLQ
Date Sat, 12 Sep 2015 04:35:15 GMT
Hey Rosy - ActiveMQ is a messaging solution, primarily focused on getting
messages from producers to consumers.  Advanced logic of that type really
belongs in an application.  There's no straight-forward way to add that to
ActiveMQ itself, and it would be difficult to diagnose if such functionality
didn't work perfectly.

I would look at the processing of the messages and find a way within the
application to detect when processing of a message should not continue due
to a prior, related message failing.  If the messages do not have sequence
numbers on them, it would be very simple to add a processor (e.g. using
camel) that reads the messages and assigns incremental sequence numbers to
each message in the same steam (e.g.  message 1, 2, and 3 for student_1000). 
Then the application can track the last successful update for each student
and reject updates that are out-of-sequence.

Actually, even JMS Groups aren't the best messaging pattern; they sound like
a good idea, but in practice JMS Groups can create a lot of problems. 
Idempotent processing is the gold-standard enabling fully competing
consumers and true horizontal scaling.

Hope this helps.

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