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  1. Hadoop YARN
  2. YARN-10966

nodeUpdate will make NPE when node decomissioning trans to decomissed at same time

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      YARN-4677 fix race condition, but not fix complete, it will cause NPE exception when containerLaunchedOnNode call node.getNodeID but the node is null 

      java.lang.NullPointerException
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.containerLaunchedOnNode(AbstractYarnScheduler.java:366)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.updateNewContainerInfo(AbstractYarnScheduler.java:1029)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.nodeUpdate(AbstractYarnScheduler.java:1130)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.nodeUpdate(CapacityScheduler.java:1480)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:1938)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:173)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestCapacityScheduler.testRemovedNodeDecomissioningNode

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            tuyu tuyu
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              Updated: