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Date: Wed, 23 May 2012 15:04:41 +0000 (UTC)
From: "Thomas Graves (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Commented] (MAPREDUCE-4224) TestFifoScheduler throws
 org.apache.hadoop.metrics2.MetricsException
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-4224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13281649#comment-13281649 ] 

Thomas Graves commented on MAPREDUCE-4224:
------------------------------------------

Changes look good. TestCapacityScheduler has this same issue, would you mind updated it also?
                
> TestFifoScheduler throws org.apache.hadoop.metrics2.MetricsException 
> ---------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4224
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4224
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2, scheduler, test
>    Affects Versions: 2.0.0, 3.0.0
>            Reporter: Devaraj K
>            Assignee: Devaraj K
>         Attachments: MAPREDUCE-4224.patch
>
>
> {code:xml}
> 2012-05-04 15:18:47,180 WARN  [main] util.MBeans (MBeans.java:getMBeanName(95)) - Error creating MBean object name: Hadoop:service=ResourceManager,name=RMNMInfo
> org.apache.hadoop.metrics2.MetricsException: org.apache.hadoop.metrics2.MetricsException: Hadoop:service=ResourceManager,name=RMNMInfo already exists!
> 	at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newObjectName(DefaultMetricsSystem.java:117)
> 	at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newMBeanName(DefaultMetricsSystem.java:102)
> 	at org.apache.hadoop.metrics2.util.MBeans.getMBeanName(MBeans.java:93)
> 	at org.apache.hadoop.metrics2.util.MBeans.register(MBeans.java:55)
> 	at org.apache.hadoop.yarn.server.resourcemanager.RMNMInfo.<init>(RMNMInfo.java:59)
> 	at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.init(ResourceManager.java:225)
> 	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.TestFifoScheduler.setUp(TestFifoScheduler.java:62)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> 	at java.lang.reflect.Method.invoke(Unknown Source)
> 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> 	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
> 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
> 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
> 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
> 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
> 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
> 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
> 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
> 	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
> 	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
> Caused by: org.apache.hadoop.metrics2.MetricsException: Hadoop:service=ResourceManager,name=RMNMInfo already exists!
> 	at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newObjectName(DefaultMetricsSystem.java:113)
> 	... 30 more
> {code}

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