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https://issues.apache.org/jira/browse/KAFKA-8026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16794993#comment-16794993
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ASF GitHub Bot commented on KAFKA-8026:
---------------------------------------
bbejeck commented on pull request #6463: KAFKA-8026: Fix flaky regex source
integration test 1.0
URL: https://github.com/apache/kafka/pull/6463
This PR is an attempt to fix the RegexSourceIntegrationTest flakiness. My
investigation did not reveal any issues, and I was unable to reproduce the
failure locally. So I've taken some steps to eliminate what I think could be a
race condition in the test.
This is a mirror image of #6459 and is the fix for `1.0`
1. Delete and create all topics before each test starts.
2. Give the streams application in each test a unique application ID
3. Create a KafkaStreams instance local to each test.
### 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 RegexSourceIntegrationTest#testRegexMatchesTopicsAWhenDeleted
> ------------------------------------------------------------------------
>
> Key: KAFKA-8026
> URL: https://issues.apache.org/jira/browse/KAFKA-8026
> Project: Kafka
> Issue Type: Bug
> Components: streams, unit tests
> Affects Versions: 1.0.2, 1.1.1
> Reporter: Matthias J. Sax
> Assignee: Bill Bejeck
> Priority: Critical
> Labels: flaky-test
> Fix For: 1.0.3, 1.1.2
>
>
> {quote}java.lang.AssertionError: Condition not met within timeout 15000.
> Stream tasks not updated
> at org.apache.kafka.test.TestUtils.waitForCondition(TestUtils.java:276)
> at org.apache.kafka.test.TestUtils.waitForCondition(TestUtils.java:254)
> at
> org.apache.kafka.streams.integration.RegexSourceIntegrationTest.testRegexMatchesTopicsAWhenDeleted(RegexSourceIntegrationTest.java:215){quote}
> Happend in 1.0 and 1.1 builds:
> [https://builds.apache.org/blue/organizations/jenkins/kafka-1.0-jdk7/detail/kafka-1.0-jdk7/263/tests/]
> and
> [https://builds.apache.org/blue/organizations/jenkins/kafka-1.1-jdk7/detail/kafka-1.1-jdk7/249/tests/]
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