Experiencing poor performance when a priority queue with a ring queue policy has a large backlog in MRG-M 2.5
Issue
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Experiencing poor performance when a priority queue with a ring queue policy has a large backlog.
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The ring queue policy utilizes a single deque to store messages in priority and FIFO order. When inserting messages of mixed priority into a queue with a large (>100,000) message backlog, the performance degrades quickly enough to potentially block all broker worker threads if they all are publishing to the same queue
Environment
- Red Hat Enterprise MRG Messaging (MRG-M) 2.3.3 - 2.5
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