memory leak and wrong queue depth in qpid when priority queues are used

Solution Verified - Updated -

Issue

We noticed increased memory usage and queue depth inadequately high when:

  • using priority ring queues
  • performing either of below actions on such queue(s):
    • purging the queue
    • rerouting messages to a different queue
    • letting some messages to expire (due to expired time-to-live (TTL))

Environment

  • Red Hat Enterprise MRG Messaging (MRG-M) 2
    • affected qpid-cpp versions: 0.18-20 till 0.18-30

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