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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