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From "Gary Tully (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (AMQ-4504) Stalled pending message dispatch to composite destination consumer
Date Wed, 01 May 2013 20:52:15 GMT

     [ https://issues.apache.org/jira/browse/AMQ-4504?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gary Tully resolved AMQ-4504.
-----------------------------

    Resolution: Fixed

fix and test in http://svn.apache.org/r1478183
                
> Stalled pending message dispatch to composite destination consumer
> ------------------------------------------------------------------
>
>                 Key: AMQ-4504
>                 URL: https://issues.apache.org/jira/browse/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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