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https://issues.apache.org/jira/browse/QPID-6764?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lorenz Quack resolved QPID-6764.
--------------------------------
Resolution: Fixed
> 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
> Assignee: Rob Godfrey
> Fix For: qpid-java-6.1
>
>
> 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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