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https://issues.apache.org/jira/browse/KAFKA-13877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17573180#comment-17573180
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Guozhang Wang commented on KAFKA-13877:
---------------------------------------

[~lkokhreidze] ping again, please let me know if you are still working on it.

> Flaky 
> RackAwarenessIntegrationTest.shouldDistributeStandbyReplicasOverMultipleClientTags
> ----------------------------------------------------------------------------------------
>
>                 Key: KAFKA-13877
>                 URL: https://issues.apache.org/jira/browse/KAFKA-13877
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams, unit tests
>            Reporter: Guozhang Wang
>            Assignee: Levani Kokhreidze
>            Priority: Major
>              Labels: newbie
>
> The following test fails on local testbeds about once per 10-15 runs:
> {code}
> java.lang.AssertionError
>       at org.junit.Assert.fail(Assert.java:87)
>       at org.junit.Assert.assertTrue(Assert.java:42)
>       at org.junit.Assert.assertTrue(Assert.java:53)
>       at 
> org.apache.kafka.streams.integration.RackAwarenessIntegrationTest.shouldDistributeStandbyReplicasOverMultipleClientTags(RackAwarenessIntegrationTest.java:192)
>       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.rules.TestWatcher$1.evaluate(TestWatcher.java:61)
>       at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
>       at 
> org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
>       at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
>       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:331)
>       at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
>       at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
>       at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
>       at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
>       at 
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
>       at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
>       at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
>       at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
>       at 
> com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
>       at 
> com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:53)
>       at 
> com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
>       at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
> {code}



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