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From "Robbie Gemmell (JIRA)" <qpid-...@incubator.apache.org>
Subject [jira] Created: (QPID-2193) Allow deleting the first message on a queue through the JMX Management Console when connected to older brokers
Date Tue, 10 Nov 2009 10:50:27 GMT
Allow deleting the first message on a queue through the JMX Management Console when connected
to older brokers 
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                 Key: QPID-2193
                 URL: https://issues.apache.org/jira/browse/QPID-2193
             Project: Qpid
          Issue Type: New Feature
          Components: Java Management : JMX Console
    Affects Versions: 0.6
            Reporter: Robbie Gemmell
            Assignee: Robbie Gemmell
            Priority: Minor
             Fix For: 0.6


Java brokers previous to 0.6 do not support deletion of arbitrary messages, only the 'first
message on the queue' at any given time. This was not exposed in the updated console due for
release with 0.6 (where the broker now does support deletion of arbitrary messages). This
decision was made because by its very nature the method cannot guarantee which message would
be deleted when it is executed, as any queue activity could alter which message is at the
head of the queue. However, users may have come to expect this method to be present, and so
it should be exposed for older brokers that lack the ability to exactly specify which messages
should be deleted.

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