Krishna Anandan Ganesan created FLINK-33499:
-----------------------------------------------
Summary: Addressing the stability of
org.apache.flink.cep.operator.CEPOperatorTest.testCEPOperatorCleanupEventTime
Key: FLINK-33499
URL: https://issues.apache.org/jira/browse/FLINK-33499
Project: Flink
Issue Type: Bug
Components: Runtime / State Backends
Reporter: Krishna Anandan Ganesan
I am proposing to fix the flaky behavior observed in :
`org.apache.flink.cep.operator.CEPOperatorTest.testCEPOperatorCleanupEventTime`
*STEPS TO REPRODUCE THE ISSUE:*
Using the [NonDex|https://github.com/TestingResearchIllinois/NonDex] plugin,
the test can be executed first.
{code}
mvn -pl flink-libraries/flink-cep edu.illinois:nondex-maven-plugin:2.1.1:nondex
-Dtest=org.apache.flink.cep.operator.CEPOperatorTest#testCEPOperatorCleanupEventTime
{code}
The following error was seen:
{code}
[ERROR] Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.561 s
<<< FAILURE! - in org.apache.flink.cep.operator.CEPOperatorTest
[ERROR]
org.apache.flink.cep.operator.CEPOperatorTest.testCEPOperatorCleanupEventTime
Time elapsed: 0.536 s <<< FAILURE!
java.lang.AssertionError: expected:<SubEvent(42, foo1, 1.0, 10.0)> but
was:<SubEvent(42, foo2, 1.0, 10.0)>
at org.junit.Assert.fail(Assert.java:89)
at org.junit.Assert.failNotEquals(Assert.java:835)
at org.junit.Assert.assertEquals(Assert.java:120)
at org.junit.Assert.assertEquals(Assert.java:146)
at
org.apache.flink.cep.operator.CEPOperatorTest.verifyPattern(CEPOperatorTest.java:1177)
at
org.apache.flink.cep.operator.CEPOperatorTest.testCEPOperatorCleanupEventTime(CEPOperatorTest.java:644)
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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:54)
at
org.apache.flink.util.TestNameProvider$1.evaluate(TestNameProvider.java:45)
at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:61)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at
org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
at
org.junit.vintage.engine.execution.RunnerExecutor.execute(RunnerExecutor.java:42)
at
org.junit.vintage.engine.VintageTestEngine.executeAllChildren(VintageTestEngine.java:80)
at
org.junit.vintage.engine.VintageTestEngine.execute(VintageTestEngine.java:72)
at
org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147)
at
org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127)
at
org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90)
at
org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55)
at
org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102)
at
org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54)
at
org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
at
org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
at
org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
at
org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53)
at
org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.execute(JUnitPlatformProvider.java:188)
at
org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.invokeAllTests(JUnitPlatformProvider.java:154)
at
org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.invoke(JUnitPlatformProvider.java:128)
at
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:428)
at
org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:162)
at
org.apache.maven.surefire.booter.ForkedBooter.run(ForkedBooter.java:562)
at
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:548)
[INFO]
[INFO] Results:
[INFO]
[ERROR] Failures:
[ERROR]
CEPOperatorTest.testCEPOperatorCleanupEventTime:644->verifyPattern:1177
expected:<SubEvent(42, foo1, 1.0, 10.0)> but was:<SubEvent(42, foo2, 1.0, 10.0)>
[INFO]
[ERROR] Tests run: 1, Failures: 1, Errors: 0, Skipped: 0
{code}
Please share your thoughts on this issue. I am working on identifying the root
cause and developing a potential fix for the same.
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