Support Prioritization Of Messages Pending Dispatch
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Key: AMQ-3436
URL: https://issues.apache.org/jira/browse/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 org.apache.activemq.broker.region.Queue 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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