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Posted to dev@qpid.apache.org by "Keith Wall (JIRA)" <ji...@apache.org> on 2015/10/02 12:36:26 UTC

[jira] [Created] (QPID-6764) Message age alerting is inappropriate on the enqueue path

Keith Wall created QPID-6764:
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             Summary: Message age alerting is inappropriate on the enqueue path
                 Key: QPID-6764
                 URL: https://issues.apache.org/jira/browse/QPID-6764
             Project: Qpid
          Issue Type: Improvement
          Components: Java Broker
            Reporter: Keith Wall


The Java Broker supports number of configurable message/queue alerts such as message size alert (overly large messages), queue depth alert (queues with an unexpected number of message on them), or message age alert (a queue containing a message which is older than a threshold).  These checks are performed in two places: periodically by housekeeping and when a message is enqueued.

The message age alert check is performed on by housekeeping and on enqueue of a new message.  The latter check is inappropriate and is a waste of resources.  Unlike the other checks, enqueuing a message can't affect the outcome.  It should be performed only be housekeeping.  

The message age check involves taking a lock on the oldest message - so may have a significant computation overhead.





 



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