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https://issues.apache.org/jira/browse/KAFKA-8391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16910710#comment-16910710
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ASF GitHub Bot commented on KAFKA-8391:
---------------------------------------
rhauch commented on pull request #7224: KAFKA-8391, KAFKA-8661: Improve flaky
Connect rebalance integration tests
URL: https://github.com/apache/kafka/pull/7224
Increased the timeout by a substantial amount, though this will only take
effect if the test conditions are not met successfully.
Added logic to allow tests to wait for a number of records to have been
written to / consumed from a specific topic. This involved extracting the
previously-duplicated logic in `ConnectorHandle` and TaskHandle (test framework
classes) into a new `RecordLatches` class that can be easily reused by both
those handle classes.
These integration tests are passing were occasionally failing for me
locally, but now I’ve run them successfully nearly a dozen times in a row. If
the Jenkins builds are a bit slower, this might help the tests fail less
frequently.
### Committer Checklist (excluded from commit message)
- [ ] Verify design and implementation
- [ ] Verify test coverage and CI build status
- [ ] Verify documentation (including upgrade notes)
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> 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: 2.1.2, 2.2.2, 2.4.0, 2.3.1
>
>
> [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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