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https://issues.apache.org/jira/browse/KAFKA-13010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17383474#comment-17383474
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Walker Carlson commented on KAFKA-13010:
----------------------------------------
It is possible. I ran till failure (75 runs). And it seems that the metadata
was reporting no tasks, so I would agree.
{code:java}
[ThreadMetadata{threadName=TaskMetadataTest_TaskMetadataIntegrationTestshouldReportCorrectCommittedOffsetInformation-c1a902ee-54b1-4b8e-a195-98d4a6143c1e-StreamThread-2,
threadState=RUNNING, activeTasks=[], standbyTasks=[],
consumerClientId=TaskMetadataTest_TaskMetadataIntegrationTestshouldReportCorrectCommittedOffsetInformation-c1a902ee-54b1-4b8e-a195-98d4a6143c1e-StreamThread-2-consumer,
restoreConsumerClientId=TaskMetadataTest_TaskMetadataIntegrationTestshouldReportCorrectCommittedOffsetInformation-c1a902ee-54b1-4b8e-a195-98d4a6143c1e-StreamThread-2-restore-consumer,
producerClientIds=[TaskMetadataTest_TaskMetadataIntegrationTestshouldReportCorrectCommittedOffsetInformation-c1a902ee-54b1-4b8e-a195-98d4a6143c1e-StreamThread-2-producer],
adminClientId=TaskMetadataTest_TaskMetadataIntegrationTestshouldReportCorrectCommittedOffsetInformation-c1a902ee-54b1-4b8e-a195-98d4a6143c1e-admin},
ThreadMetadata{threadName=TaskMetadataTest_TaskMetadataIntegrationTestshouldReportCorrectCommittedOffsetInformation-c1a902ee-54b1-4b8e-a195-98d4a6143c1e-StreamThread-1,
threadState=RUNNING, activeTasks=[], standbyTasks=[],
consumerClientId=TaskMetadataTest_TaskMetadataIntegrationTestshouldReportCorrectCommittedOffsetInformation-c1a902ee-54b1-4b8e-a195-98d4a6143c1e-StreamThread-1-consumer,
restoreConsumerClientId=TaskMetadataTest_TaskMetadataIntegrationTestshouldReportCorrectCommittedOffsetInformation-c1a902ee-54b1-4b8e-a195-98d4a6143c1e-StreamThread-1-restore-consumer,
producerClientIds=[TaskMetadataTest_TaskMetadataIntegrationTestshouldReportCorrectCommittedOffsetInformation-c1a902ee-54b1-4b8e-a195-98d4a6143c1e-StreamThread-1-producer],
adminClientId=TaskMetadataTest_TaskMetadataIntegrationTestshouldReportCorrectCommittedOffsetInformation-c1a902ee-54b1-4b8e-a195-98d4a6143c1e-admin}]
{code}
> Flaky test
> org.apache.kafka.streams.integration.TaskMetadataIntegrationTest.shouldReportCorrectCommittedOffsetInformation()
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-13010
> URL: https://issues.apache.org/jira/browse/KAFKA-13010
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Reporter: Bruno Cadonna
> Assignee: Walker Carlson
> Priority: Major
> Labels: flaky-test
> Attachments:
> TaskMetadataIntegrationTest#shouldReportCorrectEndOffsetInformation.rtf
>
>
> Integration test {{test
> org.apache.kafka.streams.integration.TaskMetadataIntegrationTest.shouldReportCorrectCommittedOffsetInformation()}}
> sometimes fails with
> {code:java}
> java.lang.AssertionError: only one task
> at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:26)
> at
> org.apache.kafka.streams.integration.TaskMetadataIntegrationTest.getTaskMetadata(TaskMetadataIntegrationTest.java:162)
> at
> org.apache.kafka.streams.integration.TaskMetadataIntegrationTest.shouldReportCorrectCommittedOffsetInformation(TaskMetadataIntegrationTest.java:117)
> {code}
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