[HDDS-3294] Flaky test TestContainerStateMachineFailureOnRead#testReadStateMachineFailureClosesPipeline

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Implemented
• Component/s: test
• Labels: TriagePending flaky-test ozone-flaky-test
• Target Version/s: 1.1.0
• Sprint: HDDS BadLands
• Assignee: Aryan Gupta
• Reporter: Siyao Meng
• Created: 27/Mar/20 20:01
• Updated: 25/Aug/20 14:42
• Resolved: 25/Aug/20 14:42

Description

Shows up in a PR: https://github.com/apache/hadoop-ozone/runs/540133363

log

[INFO] Running org.apache.hadoop.ozone.client.rpc.TestContainerStateMachineFailureOnRead
[ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 49.766 s <<< FAILURE! - in org.apache.hadoop.ozone.client.rpc.TestContainerStateMachineFailureOnRead
[ERROR] testReadStateMachineFailureClosesPipeline(org.apache.hadoop.ozone.client.rpc.TestContainerStateMachineFailureOnRead)  Time elapsed: 49.623 s  <<< ERROR!
java.lang.NullPointerException
	at org.apache.hadoop.ozone.client.rpc.TestContainerStateMachineFailureOnRead.testReadStateMachineFailureClosesPipeline(TestContainerStateMachineFailureOnRead.java:204)
	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$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74)

Location of NPE at TestContainerStateMachineFailureOnRead.java:204

    // delete the container dir from leader
    FileUtil.fullyDelete(new File(
        leaderDn.get().getDatanodeStateMachine()
            .getContainer().getContainerSet()
            .getContainer(omKeyLocationInfo.getContainerID()).getContainerData() <-- this line
            .getContainerPath()));