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Posted to dev@qpid.apache.org by "Philip Harvey (JIRA)" <ji...@apache.org> on 2013/06/27 12:34:19 UTC

[jira] [Created] (QPID-4958) Java Performance Tests - race condition client registration detection causes tests to hang

Philip Harvey created QPID-4958:
-----------------------------------

             Summary: Java Performance Tests - race condition client registration detection causes tests to hang
                 Key: QPID-4958
                 URL: https://issues.apache.org/jira/browse/QPID-4958
             Project: Qpid
          Issue Type: Bug
          Components: Java Performance Tests
    Affects Versions: 0.22
            Reporter: Philip Harvey
            Assignee: Philip Harvey


Occasionally various tests in ControllerAndClientTest fail with errors such as:

{noformat}
main 2013-06-25 14:39:25,539 ERROR [qpid.disttest.controller.TestRunner] Couldn't run test
org.apache.qpid.disttest.DistributedTestException: After 30000ms ... Timed out waiting for command responses ... Expecting 10 more responses.
    at org.apache.qpid.disttest.controller.TestRunner.awaitLatch(TestRunner.java:293)
    at org.apache.qpid.disttest.controller.TestRunner.awaitCommandResponses(TestRunner.java:183)
    at org.apache.qpid.disttest.controller.TestRunner.runParts(TestRunner.java:130)
    at org.apache.qpid.disttest.controller.TestRunner.run(TestRunner.java:103)
    at org.apache.qpid.disttest.controller.Controller.runAllTests(Controller.java:171)
    at org.apache.qpid.systest.disttest.controllerandclient.ControllerAndClientTest.runTestsForTwoClients(ControllerAndClientTest.java:195)
    at org.apache.qpid.systest.disttest.controllerandclient.ControllerAndClientTest.testProducerAndThreeConsumersInSeparateClients(ControllerAndClientTest.java:136)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
{noformat}

The relevant test log excerpts are shown below.

{noformat}
main 2013-06-25 14:38:35,357 INFO [qpid.disttest.controller.Controller] Awaiting client registrations
...
908 Dispatcher-1-Conn-2 2013-06-25 14:38:35,448 INFO [qpid.disttest.controller.ClientRegistry] Client registered: 63a95928-7d12-48ad-9326-133da9a0ddb6
...
920 Dispatcher-1-Conn-2 2013-06-25 14:38:35,450 INFO [qpid.disttest.controller.ClientRegistry] Client registered: 2510ce56-20d4-43a2-84db-193a87b1cfec
...
{noformat}

Client thread timing out after the 5 seconds set by the JUnit test:
{noformat}
997 2510ce56-20d4-43a2-84db-193a87b1cfec-thread 2013-06-25 14:38:40,423 DEBUG [apache.qpid.client.AMQSession] Closing session: org.apache.qpid.client.AMQSes sion_0_8@5e111b5c
{noformat}

Controller sends test set-up commands, 20 seconds after "Awaiting client registrations". This happens to be the length of the client registration time-out, suggesting that the "await client registrations" code didn't notice that client registrations.

{noformat}
1080 main 2013-06-25 14:38:55,476 DEBUG [qpid.disttest.controller.TestRunner] About to send 10 command(s) 
{noformat}



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