[KAFKA-7988] Flaky Test DynamicBrokerReconfigurationTest#testThreadPoolResize

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.2.0, 2.3.0
• Component/s: core, unit tests
• Labels: flaky-test
• Assignee: Rajini Sivaram
• Reporter: Matthias J. Sax
• Created: 23/Feb/19 17:34
• Updated: 28/Apr/22 13:52
• Resolved: 09/Oct/20 20:36

Description

To get stable nightly builds for `2.2` release, I create tickets for all observed test failures.

https://builds.apache.org/blue/organizations/jenkins/kafka-2.2-jdk8/detail/kafka-2.2-jdk8/30/

kafka.server.DynamicBrokerReconfigurationTest > testThreadPoolResize FAILED java.lang.AssertionError: Invalid threads: expected 6, got 5: List(ReplicaFetcherThread-0-0, ReplicaFetcherThread-0-1, ReplicaFetcherThread-0-0, ReplicaFetcherThread-0-2, ReplicaFetcherThread-0-1) at org.junit.Assert.fail(Assert.java:88) at org.junit.Assert.assertTrue(Assert.java:41) at kafka.server.DynamicBrokerReconfigurationTest.verifyThreads(DynamicBrokerReconfigurationTest.scala:1260) at kafka.server.DynamicBrokerReconfigurationTest.maybeVerifyThreadPoolSize$1(DynamicBrokerReconfigurationTest.scala:531) at kafka.server.DynamicBrokerReconfigurationTest.resizeThreadPool$1(DynamicBrokerReconfigurationTest.scala:550) at kafka.server.DynamicBrokerReconfigurationTest.reducePoolSize$1(DynamicBrokerReconfigurationTest.scala:536) at kafka.server.DynamicBrokerReconfigurationTest.$anonfun$testThreadPoolResize$3(DynamicBrokerReconfigurationTest.scala:559) at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:158) at kafka.server.DynamicBrokerReconfigurationTest.verifyThreadPoolResize$1(DynamicBrokerReconfigurationTest.scala:558) at kafka.server.DynamicBrokerReconfigurationTest.testThreadPoolResize(DynamicBrokerReconfigurationTest.scala:572)

Issue Links

• is related to: KAFKA-7957 Flaky Test DynamicBrokerReconfigurationTest#testMetricsReporterUpdate
• is related to: KAFKA-6824 Flaky Test DynamicBrokerReconfigurationTest#testAddRemoveSslListener
• is related to: KAFKA-7966 Flaky Test DynamicBrokerReconfigurationTest#testLogCleanerConfig
• is related to: KAFKA-7976 Flaky Test DynamicBrokerReconfigurationTest#testUncleanLeaderElectionEnable
• relates to: KAFKA-7541 Transient Failure: kafka.server.DynamicBrokerReconfigurationTest.testUncleanLeaderElectionEnable
• relates to: KAFKA-6527 Transient failure in DynamicBrokerReconfigurationTest.testDefaultTopicConfig
• relates to: KAFKA-7957 Flaky Test DynamicBrokerReconfigurationTest#testMetricsReporterUpdate
• relates to: KAFKA-6824 Flaky Test DynamicBrokerReconfigurationTest#testAddRemoveSslListener
• relates to: KAFKA-7976 Flaky Test DynamicBrokerReconfigurationTest#testUncleanLeaderElectionEnable
• relates to: KAFKA-6823 Transient failure in DynamicBrokerReconfigurationTest.testThreadPoolResize
• relates to: KAFKA-6904 DynamicBrokerReconfigurationTest#testAdvertisedListenerUpdate is flaky