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https://issues.apache.org/jira/browse/KAFKA-8262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16862035#comment-16862035
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ASF GitHub Bot commented on KAFKA-8262:
---------------------------------------
cadonna commented on pull request #6922: KAFKA-8262, KAFKA-8263: Fix flaky test
`MetricsIntegrationTest`
URL: https://github.com/apache/kafka/pull/6922
- Timeout occurred due to initial slow rebalancing.
- Added code to wait until `KafkaStreams` instance is in state RUNNING to
check registration of
metrics and in state NOT_RUNNING to check deregistration of metrics.
- I removed all other wait conditions, because they are not needed if
`KafkaStreams` instance is in the
right state.
### 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 MetricsIntegrationTest#testStreamMetric
> --------------------------------------------------
>
> Key: KAFKA-8262
> URL: https://issues.apache.org/jira/browse/KAFKA-8262
> Project: Kafka
> Issue Type: Bug
> Components: streams, unit tests
> Affects Versions: 2.3.0
> Reporter: Matthias J. Sax
> Assignee: Bruno Cadonna
> Priority: Major
> Labels: flaky-test
> Fix For: 2.4.0
>
>
> [https://builds.apache.org/job/kafka-pr-jdk11-scala2.12/3900/testReport/junit/org.apache.kafka.streams.integration/MetricsIntegrationTest/testStreamMetric/]
> {quote}java.lang.AssertionError: Condition not met within timeout 10000.
> testTaskMetric -> Size of metrics of type:'commit-latency-avg' must be equal
> to:5 but it's equal to 0 expected:<5> but was:<0> at
> org.apache.kafka.test.TestUtils.waitForCondition(TestUtils.java:361) at
> org.apache.kafka.streams.integration.MetricsIntegrationTest.testStreamMetric(MetricsIntegrationTest.java:228){quote}
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