[ 
https://issues.apache.org/jira/browse/KAFKA-7965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16813425#comment-16813425
 ] 

Bill Bejeck commented on KAFKA-7965:
------------------------------------

Saw this failure againĀ 
[https://builds.apache.org/job/kafka-pr-jdk8-scala2.11/20786/]
{noformat}
Error Message
org.scalatest.junit.JUnitTestFailedError: Should have received an class 
org.apache.kafka.common.errors.GroupMaxSizeReachedException during the cluster 
roll
Stacktrace
org.scalatest.junit.JUnitTestFailedError: Should have received an class 
org.apache.kafka.common.errors.GroupMaxSizeReachedException during the cluster 
roll
        at 
org.scalatest.junit.AssertionsForJUnit$class.newAssertionFailedException(AssertionsForJUnit.scala:100)
        at 
org.scalatest.junit.JUnitSuite.newAssertionFailedException(JUnitSuite.scala:71)
        at org.scalatest.Assertions$class.fail(Assertions.scala:1089)
        at org.scalatest.junit.JUnitSuite.fail(JUnitSuite.scala:71)
        at 
kafka.api.ConsumerBounceTest.testRollingBrokerRestartsWithSmallerMaxGroupSizeConfigDisruptsBigGroup(ConsumerBounceTest.scala:344)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at 
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
        at 
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
        at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:305)
        at 
org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
        at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:365)
        at 
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
        at 
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
        at org.junit.runners.ParentRunner$4.run(ParentRunner.java:330)
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:78)
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:328)
        at org.junit.runners.ParentRunner.access$100(ParentRunner.java:65)
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:292)
        at 
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
        at 
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
        at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:305)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:412)
        at 
org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.runTestClass(JUnitTestClassExecutor.java:110)
        at 
org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:58)
        at 
org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:38)
        at 
org.gradle.api.internal.tasks.testing.junit.AbstractJUnitTestClassProcessor.processTestClass(AbstractJUnitTestClassProcessor.java:62)
        at 
org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:51)
        at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at 
org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
        at 
org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
        at com.sun.proxy.$Proxy2.processTestClass(Unknown Source)
        at 
org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:118)
        at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at 
org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:175)
        at 
org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:157)
        at 
org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
        at 
org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
        at 
org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at 
org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
        at java.lang.Thread.run(Thread.java:748)

Standard Output
[2019-04-09 01:21:17,266] ERROR [ReplicaFetcher replicaId=2, leaderId=0, 
fetcherId=0] Error for partition __consumer_offsets-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,470] ERROR [ReplicaFetcher replicaId=0, leaderId=2, 
fetcherId=0] Error for partition topic-1 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,475] ERROR [ReplicaFetcher replicaId=0, leaderId=1, 
fetcherId=0] Error for partition topic-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,504] ERROR [ReplicaFetcher replicaId=2, leaderId=1, 
fetcherId=0] Error for partition topic-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,950] ERROR [ReplicaFetcher replicaId=2, leaderId=0, 
fetcherId=0] Error for partition closetest-8 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,950] ERROR [ReplicaFetcher replicaId=2, leaderId=1, 
fetcherId=0] Error for partition closetest-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,950] ERROR [ReplicaFetcher replicaId=0, leaderId=2, 
fetcherId=0] Error for partition closetest-7 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,950] ERROR [ReplicaFetcher replicaId=2, leaderId=1, 
fetcherId=0] Error for partition closetest-3 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,951] ERROR [ReplicaFetcher replicaId=2, leaderId=1, 
fetcherId=0] Error for partition closetest-6 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,950] ERROR [ReplicaFetcher replicaId=0, leaderId=1, 
fetcherId=0] Error for partition closetest-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,950] ERROR [ReplicaFetcher replicaId=2, leaderId=0, 
fetcherId=0] Error for partition closetest-2 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,951] ERROR [ReplicaFetcher replicaId=0, leaderId=1, 
fetcherId=0] Error for partition closetest-3 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,951] ERROR [ReplicaFetcher replicaId=2, leaderId=1, 
fetcherId=0] Error for partition closetest-9 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,950] ERROR [ReplicaFetcher replicaId=0, leaderId=2, 
fetcherId=0] Error for partition closetest-1 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,952] ERROR [ReplicaFetcher replicaId=0, leaderId=2, 
fetcherId=0] Error for partition closetest-4 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,952] ERROR [ReplicaFetcher replicaId=0, leaderId=1, 
fetcherId=0] Error for partition closetest-6 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,951] ERROR [ReplicaFetcher replicaId=2, leaderId=0, 
fetcherId=0] Error for partition closetest-5 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:17,953] ERROR [ReplicaFetcher replicaId=0, leaderId=1, 
fetcherId=0] Error for partition closetest-9 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:27,476] ERROR [ReplicaFetcher replicaId=2, leaderId=1, 
fetcherId=0] Error for partition __consumer_offsets-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:27,476] ERROR [ReplicaFetcher replicaId=0, leaderId=1, 
fetcherId=0] Error for partition __consumer_offsets-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:27,679] ERROR [ReplicaFetcher replicaId=1, leaderId=2, 
fetcherId=0] Error for partition topic-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:27,679] ERROR [ReplicaFetcher replicaId=1, leaderId=0, 
fetcherId=0] Error for partition topic-1 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:39,753] ERROR [Consumer clientId=ConsumerTestConsumer, 
groupId=group2] Offset commit failed on partition topic-0 at offset 10: This is 
not the correct coordinator. 
(org.apache.kafka.clients.consumer.internals.ConsumerCoordinator:820)
[2019-04-09 01:21:54,767] ERROR [ReplicaFetcher replicaId=1, leaderId=0, 
fetcherId=0] Error for partition __consumer_offsets-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:54,767] ERROR [ReplicaFetcher replicaId=2, leaderId=0, 
fetcherId=0] Error for partition __consumer_offsets-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:54,972] ERROR [ReplicaFetcher replicaId=1, leaderId=0, 
fetcherId=0] Error for partition topic-1 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:54,972] ERROR [ReplicaFetcher replicaId=1, leaderId=2, 
fetcherId=0] Error for partition topic-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:21:55,015] ERROR [ReplicaFetcher replicaId=2, leaderId=0, 
fetcherId=0] Error for partition topic-1 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:07,687] ERROR [Consumer clientId=ConsumerTestConsumer, 
groupId=my-test] Offset commit failed on partition topic-0 at offset 1000: This 
is not the correct coordinator. 
(org.apache.kafka.clients.consumer.internals.ConsumerCoordinator:820)
[2019-04-09 01:22:07,793] ERROR [Consumer clientId=ConsumerTestConsumer, 
groupId=my-test] Offset commit failed on partition topic-0 at offset 1000: The 
coordinator is loading and hence can't process requests. 
(org.apache.kafka.clients.consumer.internals.ConsumerCoordinator:820)
[2019-04-09 01:22:11,624] ERROR [ReplicaFetcher replicaId=1, leaderId=2, 
fetcherId=0] Error for partition __consumer_offsets-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:11,624] ERROR [ReplicaFetcher replicaId=0, leaderId=2, 
fetcherId=0] Error for partition __consumer_offsets-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:11,832] ERROR [ReplicaFetcher replicaId=2, leaderId=1, 
fetcherId=0] Error for partition topic-1 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:11,835] ERROR [ReplicaFetcher replicaId=2, leaderId=0, 
fetcherId=0] Error for partition topic-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:11,872] ERROR [ReplicaFetcher replicaId=0, leaderId=1, 
fetcherId=0] Error for partition topic-1 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:12,195] ERROR [ReplicaFetcher replicaId=2, leaderId=1, 
fetcherId=0] Error for partition fatal-exception-test-1 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:12,196] ERROR [ReplicaFetcher replicaId=2, leaderId=0, 
fetcherId=0] Error for partition fatal-exception-test-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:12,196] ERROR [ReplicaFetcher replicaId=2, leaderId=1, 
fetcherId=0] Error for partition fatal-exception-test-4 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:12,196] ERROR [ReplicaFetcher replicaId=2, leaderId=0, 
fetcherId=0] Error for partition fatal-exception-test-3 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:12,262] ERROR [ReplicaFetcher replicaId=0, leaderId=1, 
fetcherId=0] Error for partition fatal-exception-test-1 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:12,262] ERROR [ReplicaFetcher replicaId=0, leaderId=1, 
fetcherId=0] Error for partition fatal-exception-test-4 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:12,978] ERROR [Consumer clientId=ConsumerTestConsumer, 
groupId=fatal-exception-test] Attempt to join group failed due to fatal error: 
Consumer group The consumer group has reached its max size. already has the 
configured maximum number of members. 
(org.apache.kafka.clients.consumer.internals.AbstractCoordinator:556)
[2019-04-09 01:22:12,979] ERROR [daemon-consumer-assignment]: Error due to 
(kafka.api.AbstractConsumerTest$ConsumerAssignmentPoller:76)
org.apache.kafka.common.errors.GroupMaxSizeReachedException: Consumer group 
fatal-exception-test already has the configured maximum number of members.
[2019-04-09 01:22:15,847] ERROR [ReplicaFetcher replicaId=0, leaderId=1, 
fetcherId=0] Error for partition __consumer_offsets-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:15,848] ERROR [ReplicaFetcher replicaId=2, leaderId=1, 
fetcherId=0] Error for partition __consumer_offsets-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:16,050] ERROR [ReplicaFetcher replicaId=1, leaderId=0, 
fetcherId=0] Error for partition topic-1 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:16,052] ERROR [ReplicaFetcher replicaId=1, leaderId=2, 
fetcherId=0] Error for partition topic-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:26,888] ERROR [ReplicaFetcher replicaId=1, leaderId=2, 
fetcherId=0] Error for partition __consumer_offsets-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:26,890] ERROR [ReplicaFetcher replicaId=0, leaderId=2, 
fetcherId=0] Error for partition __consumer_offsets-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:27,095] ERROR [ReplicaFetcher replicaId=0, leaderId=2, 
fetcherId=0] Error for partition topic-1 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:27,095] ERROR [ReplicaFetcher replicaId=0, leaderId=1, 
fetcherId=0] Error for partition topic-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:27,134] ERROR [ReplicaFetcher replicaId=1, leaderId=2, 
fetcherId=0] Error for partition topic-1 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:27,501] ERROR [ReplicaFetcher replicaId=0, leaderId=2, 
fetcherId=0] Error for partition group-max-size-test-4 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:27,501] ERROR [ReplicaFetcher replicaId=0, leaderId=1, 
fetcherId=0] Error for partition group-max-size-test-3 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:27,501] ERROR [ReplicaFetcher replicaId=0, leaderId=2, 
fetcherId=0] Error for partition group-max-size-test-1 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:27,502] ERROR [ReplicaFetcher replicaId=0, leaderId=1, 
fetcherId=0] Error for partition group-max-size-test-0 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:27,503] ERROR [ReplicaFetcher replicaId=1, leaderId=2, 
fetcherId=0] Error for partition group-max-size-test-4 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:27,503] ERROR [ReplicaFetcher replicaId=1, leaderId=2, 
fetcherId=0] Error for partition group-max-size-test-1 at offset 0 
(kafka.server.ReplicaFetcherThread:76)
org.apache.kafka.common.errors.UnknownTopicOrPartitionException: This server 
does not host this topic-partition.
[2019-04-09 01:22:31,875] ERROR [Consumer clientId=ConsumerTestConsumer, 
groupId=group-max-size-test] Attempt to join group failed due to fatal error: 
Consumer group The consumer group has reached its max size. already has the 
configured maximum number of members. 
(org.apache.kafka.clients.consumer.internals.AbstractCoordinator:556)
[2019-04-09 01:22:31,876] ERROR [daemon-consumer-assignment]: Error due to 
(kafka.api.AbstractConsumerTest$ConsumerAssignmentPoller:76)
org.apache.kafka.common.errors.GroupMaxSizeReachedException: Consumer group 
group-max-size-test already has the configured maximum number of 
members.{noformat}

> Flaky Test 
> ConsumerBounceTest#testRollingBrokerRestartsWithSmallerMaxGroupSizeConfigDisruptsBigGroup
> ----------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-7965
>                 URL: https://issues.apache.org/jira/browse/KAFKA-7965
>             Project: Kafka
>          Issue Type: Bug
>          Components: clients, consumer, unit tests
>    Affects Versions: 2.2.0, 2.3.0
>            Reporter: Matthias J. Sax
>            Assignee: huxihx
>            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/2.2/21/]
> {quote}java.lang.AssertionError: Received 0, expected at least 68 at 
> org.junit.Assert.fail(Assert.java:88) at 
> org.junit.Assert.assertTrue(Assert.java:41) at 
> kafka.api.ConsumerBounceTest.receiveAndCommit(ConsumerBounceTest.scala:557) 
> at 
> kafka.api.ConsumerBounceTest.$anonfun$testRollingBrokerRestartsWithSmallerMaxGroupSizeConfigDisruptsBigGroup$1(ConsumerBounceTest.scala:320)
>  at 
> kafka.api.ConsumerBounceTest.$anonfun$testRollingBrokerRestartsWithSmallerMaxGroupSizeConfigDisruptsBigGroup$1$adapted(ConsumerBounceTest.scala:319)
>  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 
> kafka.api.ConsumerBounceTest.testRollingBrokerRestartsWithSmallerMaxGroupSizeConfigDisruptsBigGroup(ConsumerBounceTest.scala:319){quote}



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