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https://issues.apache.org/jira/browse/AMQ-3436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kevin Urciolo updated AMQ-3436:
-------------------------------
Attachment: PendingList.java-patch.txt
OrderedPendingList.java-patch.txt
PrioritizedPendingList.java-patch.txt
Queue.java-patch.txt
These are the changes required to have the pending message list for the
dispatcher in Queue.java use the PendingList class.
> Support Prioritization Of Messages Pending Dispatch
> ---------------------------------------------------
>
> 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
> Attachments: AMQPriorityTest.java, OrderedPendingList.java-patch.txt,
> PendingList.java-patch.txt, PrioritizedPendingList.java-patch.txt,
> Queue.java-patch.txt
>
>
> 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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