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https://issues.apache.org/jira/browse/KAFKA-8391?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
A. Sophie Blee-Goldman reopened KAFKA-8391:
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[~rhauch] [~kkonstantine] this test failed again -- based on the error message
it looks like it may be a "real" failure this time, not environmental.
Stacktrace
java.lang.AssertionError: Tasks are imbalanced:
localhost:35163=[seq-source11-0, seq-source11-3, seq-source10-1, seq-source12-1]
localhost:36961=[seq-source11-1, seq-source10-2, seq-source12-2]
localhost:39023=[seq-source11-2, seq-source10-0, seq-source10-3,
seq-source12-0, seq-source12-3]
at org.junit.Assert.fail(Assert.java:89)
at org.junit.Assert.assertTrue(Assert.java:42)
at
org.apache.kafka.connect.integration.RebalanceSourceConnectorsIntegrationTest.assertConnectorAndTasksAreUniqueAndBalanced(RebalanceSourceConnectorsIntegrationTest.java:365)
at
org.apache.kafka.test.TestUtils.lambda$waitForCondition$3(TestUtils.java:319)
at
org.apache.kafka.test.TestUtils.retryOnExceptionWithTimeout(TestUtils.java:367)
at org.apache.kafka.test.TestUtils.waitForCondition(TestUtils.java:316)
at org.apache.kafka.test.TestUtils.waitForCondition(TestUtils.java:300)
at org.apache.kafka.test.TestUtils.waitForCondition(TestUtils.java:290)
at
org.apache.kafka.connect.integration.RebalanceSourceConnectorsIntegrationTest.testDeleteConnector(RebalanceSourceConnectorsIntegrationTest.java:213)
https://ci-builds.apache.org/job/Kafka/job/kafka-pr/job/PR-10512/5/testReport/org.apache.kafka.connect.integration/RebalanceSourceConnectorsIntegrationTest/Build___JDK_15_and_Scala_2_13___testDeleteConnector/
> Flaky Test RebalanceSourceConnectorsIntegrationTest#testDeleteConnector
> -----------------------------------------------------------------------
>
> Key: KAFKA-8391
> URL: https://issues.apache.org/jira/browse/KAFKA-8391
> Project: Kafka
> Issue Type: Bug
> Components: KafkaConnect
> Affects Versions: 2.3.0
> Reporter: Matthias J. Sax
> Assignee: Randall Hauch
> Priority: Critical
> Labels: flaky-test
> Fix For: 2.3.2, 2.6.0, 2.4.2, 2.5.1
>
> Attachments: 100-gradle-builds.tar
>
>
> [https://builds.apache.org/job/kafka-pr-jdk11-scala2.12/4747/testReport/junit/org.apache.kafka.connect.integration/RebalanceSourceConnectorsIntegrationTest/testDeleteConnector/]
> {quote}java.lang.AssertionError: Condition not met within timeout 30000.
> Connector tasks did not stop in time. at
> org.apache.kafka.test.TestUtils.waitForCondition(TestUtils.java:375) at
> org.apache.kafka.test.TestUtils.waitForCondition(TestUtils.java:352) at
> org.apache.kafka.connect.integration.RebalanceSourceConnectorsIntegrationTest.testDeleteConnector(RebalanceSourceConnectorsIntegrationTest.java:166){quote}
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