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Posted to yarn-issues@hadoop.apache.org by "Tao Yang (Jira)" <ji...@apache.org> on 2019/08/30 02:01:00 UTC
[jira] [Comment Edited] (YARN-9540) TestRMAppTransitions fails
intermittently
[ https://issues.apache.org/jira/browse/YARN-9540?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16919097#comment-16919097 ]
Tao Yang edited comment on YARN-9540 at 8/30/19 2:00 AM:
---------------------------------------------------------
Hi, [~adam.antal].
The cause is that the assertion which will make sure dispatcher have handled event but there is no wait before this assertion, we need to add {{rmDispatcher.await()}} like others in TestRMAppTransitions to fix this issue.
In my local test, about 5+ failures may happened in 1000 runs. After applying the patch, I didn't see it again.
was (Author: tao yang):
Hi, [~adam.antal].
The cause is that the assertion which will make sure dispatcher have handled event but not wait, we need to add {{rmDispatcher.await()}} before that assertion like others in TestRMAppTransitions to fix this issue.
In my local test, about 5+ failures may happened in 1000 runs. After applying the patch, I didn't see it again.
> TestRMAppTransitions fails intermittently
> -----------------------------------------
>
> Key: YARN-9540
> URL: https://issues.apache.org/jira/browse/YARN-9540
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager, test
> Affects Versions: 3.2.0
> Reporter: Prabhu Joseph
> Assignee: Tao Yang
> Priority: Minor
> Attachments: YARN-9540.001.patch
>
>
> Failed
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.TestRMAppTransitions.testAppFinishedFinished[0]
> {code}
> Error Message
> expected:<1> but was:<0>
> Stacktrace
> java.lang.AssertionError: expected:<1> but was:<0>
> at org.junit.Assert.fail(Assert.java:88)
> at org.junit.Assert.failNotEquals(Assert.java:834)
> at org.junit.Assert.assertEquals(Assert.java:645)
> at org.junit.Assert.assertEquals(Assert.java:631)
> at org.apache.hadoop.yarn.server.resourcemanager.rmapp.TestRMAppTransitions.verifyAppCompletedEvent(TestRMAppTransitions.java:1307)
> at org.apache.hadoop.yarn.server.resourcemanager.rmapp.TestRMAppTransitions.verifyAppAfterFinishEvent(TestRMAppTransitions.java:1302)
> at org.apache.hadoop.yarn.server.resourcemanager.rmapp.TestRMAppTransitions.testCreateAppFinished(TestRMAppTransitions.java:648)
> at org.apache.hadoop.yarn.server.resourcemanager.rmapp.TestRMAppTransitions.testAppFinishedFinished(TestRMAppTransitions.java:1083)
> 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.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> at org.junit.runners.Suite.runChild(Suite.java:128)
> at org.junit.runners.Suite.runChild(Suite.java:27)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
> at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
> at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
> at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
> at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
> at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
> at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
> at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
> {code}
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