Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.32
    • Fix Version/s: qpid-python-1.36.0
    • Component/s: Python Client
    • Labels:
      None
    • Environment:

      python-qpid-0.32-13.fc23.noarch

      Description

      When publishing a task with qpid.messaging it deadlocks and our application cannot continue. This has not been a problem for several releases, but within a few days recently, another Satellite developer and I both experienced the issue on separate machines, different distros. He is using a MRG built pacakge (not sure of version). I am using python-qpid-0.32-13.fc23.

      Both deadlocked machines had core dumps taken on the deadlocked processes and only show only 1 Qpid thread when I expect there to be 2. There are other mongo threads, but those are idle as expected and not related. The traces show our application calling into qpid.messaging to publish a message to the message bus.

      This problem happens intermittently, and in cases where message publish is successful I've verified by core dump that there are the expected 2 threads for Qpid.

        Attachments

        1. worker-stacks
          0.3 kB
          Alan Conway
        2. pystack.17806
          62 kB
          Alan Conway
        3. bad_child.py
          4 kB
          Alan Conway
        4. bad_child.py
          4 kB
          Alan Conway
        5. spout-hang.py
          4 kB
          Alan Conway
        6. spout-hang-trace.txt
          28 kB
          Alan Conway
        7. taabt.txt
          197 kB
          Michael Hrivnak
        8. lsof.txt
          21 kB
          Michael Hrivnak
        9. bt.txt
          32 kB
          Michael Hrivnak

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              • Assignee:
                aconway Alan Conway
                Reporter:
                bmbouter Brian Bouterse
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                Dates

                • Created:
                  Updated:
                  Resolved: