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From "Keith Wall (JIRA)" <j...@apache.org>
Subject [jira] [Created] (QPID-7183) Use timed acquisitions to improve message flow amongst competing consumers
Date Tue, 05 Apr 2016 09:06:25 GMT
Keith Wall created QPID-7183:
--------------------------------

             Summary: Use timed acquisitions to improve message flow amongst competing consumers
                 Key: QPID-7183
                 URL: https://issues.apache.org/jira/browse/QPID-7183
             Project: Qpid
          Issue Type: Improvement
          Components: Java Broker
            Reporter: Keith Wall



At the moment when a message is sent to a consumer, the consumer 'acquires' the message. 
That acquisition persists until the consumer acknowledges or rejects the message.  If the
consumer is slow or stuck, that message could go unprocessed even though there may be other
consumers who could accept the message sitting idle.  Prefetching compounds the problem as
those messages are acquired too.

Some Brokers have a timed acquisition feature, where by the consumer gets the message for
a certain length of time.  After that time expires, the Broker may break the acquisition and
send the message to another competing consumer.

This feature would improve the robustness of the messaging infrastructure and make the need
the manual intervention less likely.

 







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