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From "Gary Tully (JIRA)" <>
Subject [jira] [Created] (AMQ-4504) Stalled pending message dispatch to composite destination consumer
Date Wed, 01 May 2013 20:44:15 GMT
Gary Tully created AMQ-4504:

             Summary: Stalled pending message dispatch to composite destination consumer
                 Key: AMQ-4504
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.8.0
            Reporter: Gary Tully
            Assignee: Gary Tully
             Fix For: 5.9.0

With a backlog of messages on N destinations that exceeds the prefetch of the composite consumer
for N, it is possible for dispatch on one destination to find the subscription full with messages
from the other destinations.
If there are no pending messages for that destination it won't get an ack and hence won't
attempt to dispatch again till there is another send. Leading to stalled pending messages.
The solution is to have a subscription wakeup all destination it is subscribed to once its
dispatch list is exhausted.

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