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https://issues.apache.org/jira/browse/KAFKA-13010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17383504#comment-17383504
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A. Sophie Blee-Goldman commented on KAFKA-13010:
------------------------------------------------
Yeah it's honestly pretty hard to imagine how that could have introduced a bug
like this, but the timing definitely is suspicious. Seeing as Walker was able
to reproduce it after a "reasonable" number of retries, it should be easy to
confirm the suspicion by just running the test again with sufficient repeats on
the commit just before KIP-744 was merged.
> 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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