Miklos Szegedi created HADOOP-14974:
---------------------------------------

             Summary: 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestContainerAllocation
 fails in trunk
                 Key: HADOOP-14974
                 URL: https://issues.apache.org/jira/browse/HADOOP-14974
             Project: Hadoop Common
          Issue Type: Bug
            Reporter: Miklos Szegedi
            Assignee: John Zhuge
            Priority: Blocker


{code}
org.apache.hadoop.metrics2.MetricsException: Metrics source 
QueueMetrics,q0=root already exists!

        at 
org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newSourceName(DefaultMetricsSystem.java:152)
        at 
org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.sourceName(DefaultMetricsSystem.java:125)
        at 
org.apache.hadoop.metrics2.impl.MetricsSystemImpl.register(MetricsSystemImpl.java:239)
        at 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CSQueueMetrics.forQueue(CSQueueMetrics.java:141)
        at 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.AbstractCSQueue.<init>(AbstractCSQueue.java:131)
        at 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue.<init>(ParentQueue.java:90)
        at 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerQueueManager.parseQueue(CapacitySchedulerQueueManager.java:267)
        at 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerQueueManager.initializeQueues(CapacitySchedulerQueueManager.java:158)
        at 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.initializeQueues(CapacityScheduler.java:639)
        at 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.initScheduler(CapacityScheduler.java:331)
        at 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.serviceInit(CapacityScheduler.java:391)
        at 
org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
        at 
org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:108)
        at 
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices.serviceInit(ResourceManager.java:756)
        at 
org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
        at 
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.createAndInitActiveServices(ResourceManager.java:1152)
        at 
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceInit(ResourceManager.java:317)
        at 
org.apache.hadoop.yarn.server.resourcemanager.MockRM.serviceInit(MockRM.java:1313)
        at 
org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
        at 
org.apache.hadoop.yarn.server.resourcemanager.MockRM.<init>(MockRM.java:161)
        at 
org.apache.hadoop.yarn.server.resourcemanager.MockRM.<init>(MockRM.java:140)
        at 
org.apache.hadoop.yarn.server.resourcemanager.MockRM.<init>(MockRM.java:136)
        at 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestContainerAllocation.testExcessReservationThanNodeManagerCapacity(TestContainerAllocation.java:90)
        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$1.runReflectiveCall(FrameworkMethod.java:47)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at 
org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74)
{code}



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