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Posted to jira@kafka.apache.org by GitBox <gi...@apache.org> on 2022/01/25 00:11:29 UTC

[GitHub] [kafka] lbradstreet opened a new pull request #11710: MINOR: MiniTrogdorCluster mutates objects from other threads

lbradstreet opened a new pull request #11710:
URL: https://github.com/apache/kafka/pull/11710


   MiniTrogdorCluster spins up agents from a different thread when
   scheduling them, but does not use volatiles in these objects. It's not
   clear that the updated fields are visible.
   
   The hope is that this will fix a failure where it test becomes stuck waiting for MiniTrogdorCluster to shutdown:
   ```
   	Suppressed: java.lang.InterruptedException
   		at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(AbstractQueuedSynchronizer.java:2014)
   		at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2088)
   		at java.util.concurrent.ThreadPoolExecutor.awaitTermination(ThreadPoolExecutor.java:1475)
   		at java.util.concurrent.Executors$DelegatedExecutorService.awaitTermination(Executors.java:675)
   		at org.apache.kafka.trogdor.coordinator.TaskManager.waitForShutdown(TaskManager.java:699)
   		at org.apache.kafka.trogdor.coordinator.Coordinator.waitForShutdown(Coordinator.java:133)
   		at org.apache.kafka.trogdor.common.MiniTrogdorCluster.close(MiniTrogdorCluster.java:289)
   		at org.apache.kafka.trogdor.coordinator.CoordinatorTest.testTaskRequestWithOldStartMsGetsUpdated(CoordinatorTest.java:595)
   		at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   		at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   		at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   		at java.lang.reflect.Method.invoke(Method.java:498)
   		at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:688)
   		at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
   		at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
   		at org.junit.jupiter.engine.extension.TimeoutInvocation.proceed(TimeoutInvocation.java:46)
   ```


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[GitHub] [kafka] cmccabe commented on pull request #11710: MINOR: MiniTrogdorCluster mutates objects from other threads

Posted by GitBox <gi...@apache.org>.
cmccabe commented on pull request #11710:
URL: https://github.com/apache/kafka/pull/11710#issuecomment-1020677668


   It would be nice to redo this without the volatiles, but for now, LGTM. Thanks, @lbradstreet .


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[GitHub] [kafka] cmccabe commented on pull request #11710: MINOR: MiniTrogdorCluster mutates objects from other threads

Posted by GitBox <gi...@apache.org>.
cmccabe commented on pull request #11710:
URL: https://github.com/apache/kafka/pull/11710#issuecomment-1020677668


   It would be nice to redo this without the volatiles, but for now, LGTM. Thanks, @lbradstreet .


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[GitHub] [kafka] dajac merged pull request #11710: MINOR: MiniTrogdorCluster mutates objects from other threads

Posted by GitBox <gi...@apache.org>.
dajac merged pull request #11710:
URL: https://github.com/apache/kafka/pull/11710


   


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