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https://issues.apache.org/jira/browse/KAFKA-9966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17106689#comment-17106689
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Matthias J. Sax commented on KAFKA-9966:
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Also related: [https://github.com/apache/kafka/pull/8662]
> Flaky Test EosBetaUpgradeIntegrationTest#shouldUpgradeFromEosAlphaToEosBeta
> ---------------------------------------------------------------------------
>
> Key: KAFKA-9966
> URL: https://issues.apache.org/jira/browse/KAFKA-9966
> Project: Kafka
> Issue Type: Improvement
> Components: streams, unit tests
> Reporter: Matthias J. Sax
> Assignee: Sophie Blee-Goldman
> Priority: Critical
> Labels: flaky-test
> Fix For: 2.6.0
>
>
> [https://builds.apache.org/job/kafka-pr-jdk14-scala2.13/285/testReport/junit/org.apache.kafka.streams.integration/EosBetaUpgradeIntegrationTest/shouldUpgradeFromEosAlphaToEosBeta_true_/]
> {quote}java.lang.AssertionError: Condition not met within timeout 60000.
> Clients did not startup and stabilize on time. Observed transitions: client-1
> transitions: [KeyValue(RUNNING, REBALANCING), KeyValue(REBALANCING, RUNNING)]
> client-2 transitions: [KeyValue(CREATED, REBALANCING), KeyValue(REBALANCING,
> RUNNING), KeyValue(RUNNING, REBALANCING), KeyValue(REBALANCING, RUNNING)] at
> org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:26) at
> org.apache.kafka.test.TestUtils.lambda$waitForCondition$5(TestUtils.java:381)
> at
> org.apache.kafka.test.TestUtils.retryOnExceptionWithTimeout(TestUtils.java:429)
> at
> org.apache.kafka.test.TestUtils.retryOnExceptionWithTimeout(TestUtils.java:397)
> at org.apache.kafka.test.TestUtils.waitForCondition(TestUtils.java:378) at
> org.apache.kafka.streams.integration.EosBetaUpgradeIntegrationTest.waitForStateTransition(EosBetaUpgradeIntegrationTest.java:924)
> at
> org.apache.kafka.streams.integration.EosBetaUpgradeIntegrationTest.shouldUpgradeFromEosAlphaToEosBeta(EosBetaUpgradeIntegrationTest.java:741){quote}
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