Details
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Bug
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Status: Resolved
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Major
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Resolution: Invalid
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2.2.0
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None
Description
When I submit a job to hadoop cluster, but don't specified a queuename as follow
$HADOOP_HOME/bin/hadoop jar statistics.jar com.iteblog.Sts -Dmapreduce.job.queuename=
and if yarn.scheduler.fair.allow-undeclared-pools is not overwrite by user(default is true), then QueueManager will call createLeafQueue method to create the queue, because mapreduce.job.queuename is empty and cann't find it in QueueManager .But this will throw MetricsException
2014-11-14 16:07:57,358 FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in handling event type APP_ADDED to the scheduler
org.apache.hadoop.metrics2.MetricsException: Metrics source QueueMetrics,q0=root already exists!
at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newSourceName(DefaultMetricsSystem.java:126)
at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.sourceName(DefaultMetricsSystem.java:107)
at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.register(MetricsSystemImpl.java:217)
at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSQueueMetrics.forQueue(FSQueueMetrics.java:94)
at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSQueue.<init>(FSQueue.java:57)
at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSLeafQueue.<init>(FSLeafQueue.java:57)
at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.QueueManager.createLeafQueue(QueueManager.java:191)
at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.QueueManager.getLeafQueue(QueueManager.java:136)
at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.assignToQueue(FairScheduler.java:652)
at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.addApplication(FairScheduler.java:610)
at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:1015)
at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:112)
at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:440)
at java.lang.Thread.run(Thread.java:744)
2014-11-14 16:07:57,359 INFO org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Exiting, bbye..
