Nodemanager should be more robust in handling connection failure to ResourceManager when a cluster is started

ERROR org.apache.hadoop.yarn.service.CompositeService: Error starting services org.apache.hadoop.yarn.server.nodemanager.NodeManager
org.apache.avro.AvroRuntimeException: java.lang.reflect.UndeclaredThrowableException
	at org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.start(NodeStatusUpdaterImpl.java:149)
	at org.apache.hadoop.yarn.service.CompositeService.start(CompositeService.java:68)
	at org.apache.hadoop.yarn.server.nodemanager.NodeManager.start(NodeManager.java:167)
	at org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:242)
Caused by: java.lang.reflect.UndeclaredThrowableException
	at org.apache.hadoop.yarn.server.api.impl.pb.client.ResourceTrackerPBClientImpl.registerNodeManager(ResourceTrackerPBClientImpl.java:66)
	at org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.registerWithRM(NodeStatusUpdaterImpl.java:182)
	at org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.start(NodeStatusUpdaterImpl.java:145)
	... 3 more
Caused by: com.google.protobuf.ServiceException: java.net.ConnectException: Call From HOST-10-18-52-230/10.18.52.230 to HOST-10-18-52-250:8025 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
	at org.apache.hadoop.yarn.ipc.ProtoOverHadoopRpcEngine$Invoker.invoke(ProtoOverHadoopRpcEngine.java:131)
	at $Proxy23.registerNodeManager(Unknown Source)
	at org.apache.hadoop.yarn.server.api.impl.pb.client.ResourceTrackerPBClientImpl.registerNodeManager(ResourceTrackerPBClientImpl.java:59)
	... 5 more
Caused by: java.net.ConnectException: Call From HOST-10-18-52-230/10.18.52.230 to HOST-10-18-52-250:8025 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
	at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:857)
	at org.apache.hadoop.ipc.Client.call(Client.java:1141)
	at org.apache.hadoop.ipc.Client.call(Client.java:1100)
	at org.apache.hadoop.yarn.ipc.ProtoOverHadoopRpcEngine$Invoker.invoke(ProtoOverHadoopRpcEngine.java:128)
	... 7 more
Caused by: java.net.ConnectException: Connection refused
	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
	at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:659)
	at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:469)
	at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:563)
	at org.apache.hadoop.ipc.Client$Connection.access$2000(Client.java:211)
	at org.apache.hadoop.ipc.Client.getConnection(Client.java:1247)
	at org.apache.hadoop.ipc.Client.call(Client.java:1117)
	... 9 more
2012-01-16 15:04:13,336 WARN org.apache.hadoop.yarn.event.AsyncDispatcher: AsyncDispatcher thread interrupted
java.lang.InterruptedException
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(AbstractQueuedSynchronizer.java:1899)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1934)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:358)
	at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:76)
	at java.lang.Thread.run(Thread.java:619)
2012-01-16 15:04:13,337 INFO org.apache.hadoop.yarn.service.AbstractService: Service:Dispatcher is stopped.
2012-01-16 15:04:13,392 INFO org.mortbay.log: Stopped SelectChannelConnector@0.0.0.0:9999
2012-01-16 15:04:13,493 INFO org.apache.hadoop.yarn.service.AbstractService: Service:org.apache.hadoop.yarn.server.nodemanager.webapp.WebServer is stopped.
2012-01-16 15:04:13,493 INFO org.apache.hadoop.ipc.Server: Stopping server on 24290
2012-01-16 15:04:13,494 INFO org.apache.hadoop.ipc.Server: Stopping IPC Server listener on 24290
2012-01-16 15:04:13,495 INFO org.apache.hadoop.ipc.Server: Stopping IPC Server Responder
2012-01-16 15:04:13,496 INFO org.apache.hadoop.yarn.service.AbstractService: Service:org.apache.hadoop.yarn.server.nodemanager.containermanager.loghandler.NonAggregatingLogHandler is stopped.
2012-01-16 15:04:13,496 WARN org.apache.hadoop.yarn.event.AsyncDispatcher: AsyncDispatcher thread interrupted
java.lang.InterruptedException
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(AbstractQueuedSynchronizer.java:1899)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1934)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:358)
	at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:76)
	at java.lang.Thread.run(Thread.java:619)