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https://issues.apache.org/jira/browse/KAFKA-17114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ao Li reopened KAFKA-17114:
---------------------------
This bug is not resolved. Please check the fork to reproduce the failure:
https://github.com/aoli-al/kafka/tree/KAFKA-110
With following command: ./gradlew :streams:test --tests
DefaultStateUpdaterTest.shouldThrowIfAddingStandbyAndActiveTaskWithSameId
> DefaultStateUpdater::handleRuntimeException should update isRunning before
> calling `addToExceptionsAndFailedTasksThenClearUpdatingAndPausedTasks`
> -------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-17114
> URL: https://issues.apache.org/jira/browse/KAFKA-17114
> Project: Kafka
> Issue Type: Test
> Components: streams, unit tests
> Affects Versions: 3.9.0
> Reporter: Ao Li
> Priority: Minor
>
> I saw a flaky test in
> DefaultStateUpdaterTest::shouldThrowIfAddingStandbyAndActiveTaskWithSameId
> recently.
> {code}
> org.opentest4j.AssertionFailedError: expected: <false> but was: <true>
> at
> org.junit.jupiter.api.AssertionFailureBuilder.build(AssertionFailureBuilder.java:151)
> at
> org.junit.jupiter.api.AssertionFailureBuilder.buildAndThrow(AssertionFailureBuilder.java:132)
> at org.junit.jupiter.api.AssertFalse.failNotFalse(AssertFalse.java:63)
> at org.junit.jupiter.api.AssertFalse.assertFalse(AssertFalse.java:36)
> at org.junit.jupiter.api.AssertFalse.assertFalse(AssertFalse.java:31)
> at org.junit.jupiter.api.Assertions.assertFalse(Assertions.java:231)
> at
> org.apache.kafka.streams.processor.internals.DefaultStateUpdaterTest.shouldThrowIfAddingTasksWithSameId(DefaultStateUpdaterTest.java:294)
> at
> org.apache.kafka.streams.processor.internals.DefaultStateUpdaterTest.shouldThrowIfAddingStandbyAndActiveTaskWithSameId(DefaultStateUpdaterTest.java:285)
> at java.base/java.lang.reflect.Method.invoke(Method.java:580)
> at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
> at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
> {code}
> To make the bug more reproducible, you may add `Thread.sleep(5)` after
> `addToExceptionsAndFailedTasksThenClearUpdatingAndPausedTasks(runtimeException);`
> in DefaultStateUpdater::handleRuntimeException
> The test is flaky because
> `addToExceptionsAndFailedTasksThenClearUpdatingAndPausedTasks(runtimeException);`
> will unblock the `verifyFailedTasks(IllegalStateException.class, task1);`
> statement in DefaultStateUpdaterTest::shouldThrowIfAddingTasksWithSameId.
> If `assertFalse(stateUpdater.isRunning());` is executed before
> `isRunning.set(false);` the test will fail
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