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  1. AMQ Clients
  2. ENTMQCL-484

[jms] Race on connection start and message dispatch can deliver messages in wrong order

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Critical Critical
    • 1.1.0-GA-B2
    • 1.1.0-beta-2
    • qpid-jms
    • None
    • Release Notes
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       - Cause: A race between handling of previously prefetched and newly-arriving messages for a consumer when Connection#start() is called after creation of the consumer.
       - Consequence: Messages could be received in an unexpected order due to some leap-frogging others.
       - Fix: An intermediate data structure was removed to prevent the race and ensure the correct delivery order in this situation.
       - Result: Messages are received in the expected order when when Connection#start() is called after creation of the consumer.
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       - Cause: A race between handling of previously prefetched and newly-arriving messages for a consumer when Connection#start() is called after creation of the consumer.  - Consequence: Messages could be received in an unexpected order due to some leap-frogging others.  - Fix: An intermediate data structure was removed to prevent the race and ensure the correct delivery order in this situation.  - Result: Messages are received in the expected order when when Connection#start() is called after creation of the consumer.
    • Documented as Resolved Issue

      If a connection is started in which consumer have been created and messages are incoming a call to start can end in a race where on incoming message can jump the line and be delivered ahead of previously queued messages.

            jross@redhat.com Justin Ross
            gemmellr Robbie Gemmell
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              Created:
              Updated:
              Resolved: