message age alert / notification only checks the age of the first message in
the QueueEntryList
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Key: QPID-2122
URL: https://issues.apache.org/jira/browse/QPID-2122
Project: Qpid
Issue Type: Bug
Components: Java Broker, Java Management : JMX Interface
Affects Versions: M4, M3, M2.1, 0.5
Reporter: Robbie Gemmell
Priority: Minor
Message age alert / notification only checks the age of the first message in
the queue entry list.
The housekeeping thread checks message status for each queue. During the
process it iterates over given queue performing a notification check on each
message (if it has not expired), however the actual notification check for
message age ignores the message provided and simply requests the oldest message
arrival time from the queue, then checks whether this time was before the limit
imposed by subtracting the threshold time from the current time. The queue
provides this time by getting the message at the head of the QueueEntryList and
checking its arrival time. Moving or copying messages between queues using the
management interfaces is one example of where the time provided by such a check
may not actually be the arrival time of the oldest message on the queue, as
moved/copied messages are enqueued at the end of the queue but may infact be
older than those at the beginning of the queue.
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