[ 
https://issues.apache.org/jira/browse/KAFKA-13514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17872692#comment-17872692
 ] 

Chia-Ping Tsai commented on KAFKA-13514:
----------------------------------------

another error: 
https://ci-builds.apache.org/job/Kafka/job/kafka-pr/job/PR-16822/3/display/redirect


{code:java}
Error
org.gradle.api.internal.tasks.testing.TestSuiteExecutionException: Could not 
complete execution for Gradle Test Executor 100.
Stacktrace
org.gradle.api.internal.tasks.testing.TestSuiteExecutionException: Could not 
complete execution for Gradle Test Executor 100.
        at 
org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:64)
        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.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at 
org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
        at 
org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94)
        at com.sun.proxy.$Proxy2.stop(Unknown Source)
        at 
org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:193)
        at 
org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:129)
        at 
org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:100)
        at 
org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:60)
        at 
org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)
        at 
org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:119)
        at 
org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:66)
        at 
worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
        at 
worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
        at java.util.TreeMap.put(TreeMap.java:577)
        at java.util.TreeSet.add(TreeSet.java:255)
        at 
org.apache.kafka.clients.consumer.internals.AbstractStickyAssignor$GeneralAssignmentBuilder.maybeAssignPartition(AbstractStickyAssignor.java:1271)
        at 
org.apache.kafka.clients.consumer.internals.AbstractStickyAssignor$GeneralAssignmentBuilder.maybeAssign(AbstractStickyAssignor.java:1293)
        at 
org.apache.kafka.clients.consumer.internals.AbstractStickyAssignor$GeneralAssignmentBuilder.balance(AbstractStickyAssignor.java:1338)
        at 
org.apache.kafka.clients.consumer.internals.AbstractStickyAssignor$GeneralAssignmentBuilder.build(AbstractStickyAssignor.java:1026)
        at 
org.apache.kafka.clients.consumer.internals.AbstractStickyAssignor.assignPartitions(AbstractStickyAssignor.java:115)
        at 
org.apache.kafka.clients.consumer.CooperativeStickyAssignor.assignPartitions(CooperativeStickyAssignor.java:112)
        at 
org.apache.kafka.clients.consumer.internals.AbstractStickyAssignorTest.testLargeAssignmentAndGroupWithNonEqualSubscription(AbstractStickyAssignorTest.java:769)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:728)
        at 
org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
        at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
        at 
org.junit.jupiter.engine.extension.SameThreadTimeoutInvocation.proceed(SameThreadTimeoutInvocation.java:45)
        at 
org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156)
        at 
org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147)
        at 
org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestTemplateMethod(TimeoutExtension.java:94)
        at 
org.junit.jupiter.engine.descriptor.TestTemplateInvocationTestDescriptor$$Lambda$453/1609086753.apply(Unknown
 Source)
        at 
org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103)
        at 
org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall$$Lambda$170/119290689.apply(Unknown
 Source)
        at 
org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93)
        at 
org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$$Lambda$343/754527431.apply(Unknown
 Source)
        at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
        at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
        at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
        at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
        at 
org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92)
        at 
org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86)
        at 
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:218)
{code}


> Flaky test StickyAssignorTest
> -----------------------------
>
>                 Key: KAFKA-13514
>                 URL: https://issues.apache.org/jira/browse/KAFKA-13514
>             Project: Kafka
>          Issue Type: Test
>          Components: clients, consumer, unit tests
>            Reporter: Matthias J. Sax
>            Assignee: Luke Chen
>            Priority: Critical
>              Labels: flaky-test
>
> org.apache.kafka.clients.consumer.StickyAssignorTest.testLargeAssignmentAndGroupWithNonEqualSubscription()
> No real stack trace, but only:
> {quote}java.util.concurrent.TimeoutException: 
> testLargeAssignmentAndGroupWithNonEqualSubscription() timed out after 60 
> seconds{quote}
> STDOUT
> {quote}[2021-12-07 01:32:23,920] ERROR Found multiple consumers consumer1 and 
> consumer2 claiming the same TopicPartition topic-0 in the same generation -1, 
> this will be invalidated and removed from their previous assignment. 
> (org.apache.kafka.clients.consumer.internals.AbstractStickyAssignor:150) 
> [2021-12-07 01:32:58,964] ERROR Found multiple consumers consumer1 and 
> consumer2 claiming the same TopicPartition topic-0 in the same generation -1, 
> this will be invalidated and removed from their previous assignment. 
> (org.apache.kafka.clients.consumer.internals.AbstractStickyAssignor:150) 
> [2021-12-07 01:32:58,976] ERROR Found multiple consumers consumer1 and 
> consumer2 claiming the same TopicPartition topic-0 in the same generation -1, 
> this will be invalidated and removed from their previous assignment. 
> (org.apache.kafka.clients.consumer.internals.AbstractStickyAssignor:150){quote}



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