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From "Kevin Urciolo (JIRA)" <>
Subject [jira] [Created] (AMQ-3436) Support Prioritization Of Messages Pending Dispatch
Date Wed, 03 Aug 2011 20:17:26 GMT
Support Prioritization Of Messages Pending Dispatch

                 Key: AMQ-3436
             Project: ActiveMQ
          Issue Type: Improvement
          Components: Broker
    Affects Versions: 5.5.0
            Reporter: Kevin Urciolo
            Priority: Minor

ActiveMQ does not deliver messages in priority order when the following conditions are true:

1.  A consumer has prefetch set to one (or zero).
2.  The consumer is created (consumerSession.createConsumer) prior to message delivery
3.  Large maxPageSize is configured

The fix is to modify to use a PrioritizationPendingList
for the message in "pagedInPendingDispatch" so they are dispatched in priority order.

A test case reproducing the issue is included.
The patched file deltas are included.

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