Uploaded image for project: 'Flink'
  1. Flink
  2. FLINK-8040

Test instability ResourceGuard#testCloseBlockIfAcquired

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.4.0, 1.5.0
    • Fix Version/s: 1.4.0, 1.5.0
    • Component/s: Tests
    • Labels:

      Description

      Test ResourceGuard#testCloseBlockIfAcquired() fails sporadically with

      java.io.IOException: Resource guard was already closed.
      
      	at org.apache.flink.util.ResourceGuard.acquireResource(ResourceGuard.java:72)
      	at org.apache.flink.util.ResourceGuardTest.testCloseBlockIfAcquired(ResourceGuardTest.java:74)
      	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:498)
      	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
      	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
      	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
      	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
      	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
      	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
      

      How to reproduce
      Run the test with a high number of iterations.
      To further provoke a failure, add Thread.sleep(100) before the following line

      ResourceGuard.Lease lease_2 = resourceGuard.acquireResource();
      

      This will more likely result in closed being true at the time the 2nd lease is acquired and an exception is thrown:

      	if (closed) {
      		throw new IOException("Resource guard was already closed.");
      	}
      

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                srichter Stefan Richter
                Reporter:
                gjy Gary Yao
              • Votes:
                0 Vote for this issue
                Watchers:
                3 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: