[KAFKA-7977] Flaky Test ReassignPartitionsClusterTest#shouldOnlyThrottleMovingReplicas

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.2.0
• Component/s: admin, unit tests
• Labels: flaky-test
• Assignee: Unassigned
• Reporter: Matthias J. Sax
• Created: 22/Feb/19 03:04
• Updated: 08/Mar/19 18:10
• Resolved: 07/Mar/19 17:47

Description

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/2.2/25/

org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /brokers/topics/topic1 at org.apache.zookeeper.KeeperException.create(KeeperException.java:130) at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) at kafka.zookeeper.AsyncResponse.resultException(ZooKeeperClient.scala:534) at kafka.zk.KafkaZkClient.$anonfun$getReplicaAssignmentForTopics$2(KafkaZkClient.scala:579) at scala.collection.TraversableLike.$anonfun$flatMap$1(TraversableLike.scala:244) at scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:62) at scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:55) at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:49) at scala.collection.TraversableLike.flatMap(TraversableLike.scala:244) at scala.collection.TraversableLike.flatMap$(TraversableLike.scala:241) at scala.collection.AbstractTraversable.flatMap(Traversable.scala:108) at kafka.zk.KafkaZkClient.getReplicaAssignmentForTopics(KafkaZkClient.scala:574) at kafka.admin.ReassignPartitionsCommand$.parseAndValidate(ReassignPartitionsCommand.scala:338) at kafka.admin.ReassignPartitionsCommand$.executeAssignment(ReassignPartitionsCommand.scala:209) at kafka.admin.ReassignPartitionsClusterTest.shouldOnlyThrottleMovingReplicas(ReassignPartitionsClusterTest.scala:343)

Issue Links

• is related to: KAFKA-5183 Transient failure: ReassignPartitionsClusterTest.shouldChangeThrottleOnRerunAndRemoveOnVerify
• is related to: KAFKA-6410 Scala ReassignPartitionsClusterTest (shouldExecuteThrottledReassignment)
• is related to: KAFKA-4262 Intermittent unit test failure ReassignPartitionsClusterTest.shouldExecuteThrottledReassignment
• is related to: KAFKA-6078 Investigate failure of ReassignPartitionsClusterTest.shouldExpandCluster
• is related to: KAFKA-6736 ReassignPartitionsClusterTest#shouldMoveSubsetOfPartitions is flaky