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https://issues.apache.org/jira/browse/KAFKA-7966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16784379#comment-16784379
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Rajini Sivaram commented on KAFKA-7966:
---------------------------------------
DynamicBrokerReconfiguration test creates __consumer_offsets topic with the
default of 50 partitions. From the exception it looks like the test failed to
create the topic and propagate metadata within the 15 second timeout. This is
in the test setup, so no other timing issues here, just a slow test machine. I
am changing the number of offset partitions to the value used in other tests,
which is 5. Change is included in the PR for KAFKA-7976
(https://github.com/apache/kafka/pull/6374).
> Flaky Test DynamicBrokerReconfigurationTest#testLogCleanerConfig
> ----------------------------------------------------------------
>
> Key: KAFKA-7966
> URL: https://issues.apache.org/jira/browse/KAFKA-7966
> Project: Kafka
> Issue Type: Bug
> Components: core, unit tests
> Affects Versions: 2.2.0
> Reporter: Matthias J. Sax
> Assignee: Rajini Sivaram
> Priority: Critical
> Labels: flaky-test
> Fix For: 2.3.0, 2.2.1
>
>
> To get stable nightly builds for `2.2` release, I create tickets for all
> observed test failures.
> [https://jenkins.confluent.io/job/apache-kafka-test/job/2.2/22/]
> {quote}java.lang.AssertionError: Partition [__consumer_offsets,0] metadata
> not propagated after 15000 ms at
> kafka.utils.TestUtils$.fail(TestUtils.scala:356) at
> kafka.utils.TestUtils$.waitUntilTrue(TestUtils.scala:766) at
> kafka.utils.TestUtils$.waitUntilMetadataIsPropagated(TestUtils.scala:855) at
> kafka.utils.TestUtils$.$anonfun$createTopic$1(TestUtils.scala:303) at
> kafka.utils.TestUtils$.$anonfun$createTopic$1$adapted(TestUtils.scala:302) at
> scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:237) at
> scala.collection.immutable.Range.foreach(Range.scala:158) at
> scala.collection.TraversableLike.map(TraversableLike.scala:237) at
> scala.collection.TraversableLike.map$(TraversableLike.scala:230) at
> scala.collection.AbstractTraversable.map(Traversable.scala:108) at
> kafka.utils.TestUtils$.createTopic(TestUtils.scala:302) at
> kafka.server.DynamicBrokerReconfigurationTest.setUp(DynamicBrokerReconfigurationTest.scala:137){quote}
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