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From "Kevin Urciolo (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMQ-3436) Support Prioritization Of Messages Pending Dispatch
Date Wed, 03 Aug 2011 20:19:27 GMT

     [ https://issues.apache.org/jira/browse/AMQ-3436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kevin Urciolo updated AMQ-3436:
-------------------------------

    Attachment: AMQPriorityTest.java

This is the junit test that reproduces the issue.

> 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
>
>
> 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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