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https://issues.apache.org/jira/browse/KAFKA-8391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16913407#comment-16913407
]
ASF GitHub Bot commented on KAFKA-8391:
---------------------------------------
rhauch commented on pull request #7237: KAFKA-8391: Temporarily ignore flaky
Connect rebalance integration tests
URL: https://github.com/apache/kafka/pull/7237
I've spent quite a bit of time on trying to discover the root cause, with no
luck so far. I have been able to reproduce it locally by running the following
100 times:
```
./gradlew connect:runtime:clean connect:runtime:test --tests
org.apache.kafka.connect.integration.RebalanceSourceConnectorsIntegrationTest
```
The `testReconfigConnector` test failed 28% of the time and the others
failed 0%. This issue and KAFKA-8661 suggest that `testDeleteConnector` and
`testStartTwoConnectors` are also flaky, though I've not seen those tests fail
locally.
Because this flakiness is causing issues for the rest of the project, I'm
going to temporarily ignore several of the flaky ITs while I continue to
investigate:
* `RebalanceSourceConnectorsIntegrationTest.testReconfigConnector`
* `RebalanceSourceConnectorsIntegrationTest.testDeleteConnector`
* `RebalanceSourceConnectorsIntegrationTest.testStartTwoConnectors`
**This should be backported to the `2.3` branch, which is when these
integration tests were first added.**
### 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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