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ISSUE-15091: Flaky-test: org.apache.pulsar.metadata.LockManagerTest updateValueWhenKeyDisappears flakes #4043

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sijie opened this issue Apr 8, 2022 · 0 comments

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sijie commented Apr 8, 2022

Original Issue: apache#15091


org.apache.pulsar.metadata.LockManagerTest updateValueWhenKeyDisappears is flaky. It passes occasionally but more often it fails.

It passes if I revert apache#13911

 git revert 78827bebb5ed92885a04a138cf8f5aaa7370d2bc

All tests in org.apache.pulsar.metadata.LockManagerTest pass if I revert the PR.
@shibd It is easy to submit a PR to revert your change but can I ask you to repro this?
I tested on latest master (a595e03)

I ran it locally (on mac):

[INFO] Running org.apache.pulsar.metadata.LockManagerTest
[ERROR] Tests run: 11, Failures: 1, Errors: 0, Skipped: 9, Time elapsed: 1.721 s <<< FAILURE! - in org.apache.pulsar.metadata.LockManagerTest
[ERROR] updateValueWhenKeyDisappears(org.apache.pulsar.metadata.LockManagerTest)  Time elapsed: 0.011 s  <<< FAILURE!
java.util.NoSuchElementException: No value present
	at java.base/java.util.Optional.get(Optional.java:148)
	at org.apache.pulsar.metadata.LockManagerTest.updateValueWhenKeyDisappears(LockManagerTest.java:206)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132)
	at org.testng.internal.InvokeMethodRunnable.runOne(InvokeMethodRunnable.java:45)
	at org.testng.internal.InvokeMethodRunnable.call(InvokeMethodRunnable.java:73)
	at org.testng.internal.InvokeMethodRunnable.call(InvokeMethodRunnable.java:11)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:829)
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