Junping Du created YARN-2970:
--------------------------------

             Summary: NodeLabel operations in RMAdmin CLI get missing in help 
command.
                 Key: YARN-2970
                 URL: https://issues.apache.org/jira/browse/YARN-2970
             Project: Hadoop YARN
          Issue Type: Sub-task
    Affects Versions: 2.6.0
            Reporter: Junping Du
            Priority: Minor


NodeLabel operations in RMAdmin CLI get missing in help command when I am 
debugging YARN-313, we should add them on as other cmds:
{noformat} 
yarn rmadmin [-refreshQueues] [-refreshNodes] [-refreshResources] 
[-refreshSuperUserGroupsConfiguration] [-refreshUserToGroupsMappings] 
[-refreshAdminAcls] [-refreshServiceAcl] [-getGroup [username]] 
[-updateNodeResource [NodeID] [MemSize] [vCores] ([OvercommitTimeout]) [-help 
[cmd]]

   -refreshQueues: Reload the queues' acls, states and scheduler specific 
properties.
                ResourceManager will reload the mapred-queues configuration 
file.
   -refreshNodes: Refresh the hosts information at the ResourceManager.
   -refreshResources: Refresh resources of NodeManagers at the ResourceManager.
   -refreshSuperUserGroupsConfiguration: Refresh superuser proxy groups mappings
   -refreshUserToGroupsMappings: Refresh user-to-groups mappings
   -refreshAdminAcls: Refresh acls for administration of ResourceManager
   -refreshServiceAcl: Reload the service-level authorization policy file.
                ResoureceManager will reload the authorization policy file.
   -getGroups [username]: Get the groups which given user belongs to.
   -updateNodeResource [NodeID] [MemSize] [vCores] ([OvercommitTimeout]): 
Update resource on specific node.
   -help [cmd]: Displays help for the given command or all commands if none is 
specified.
   -addToClusterNodeLabels [label1,label2,label3] (label splitted by ","): add 
to cluster node labels
   -removeFromClusterNodeLabels [label1,label2,label3] (label splitted by ","): 
remove from cluster node labels
   -replaceLabelsOnNode [node1:port,label1,label2 node2:port,label1,label2]: 
replace labels on nodes
   -directlyAccessNodeLabelStore: Directly access node label store, with this 
option, all node label related operations will not connect RM. Instead, they 
will access/modify stored node labels directly. By default, it is false (access 
via RM). AND PLEASE NOTE: if you configured yarn.node-labels.fs-store.root-dir 
to a local directory (instead of NFS or HDFS), this option will only work when 
the command run on the machine where RM is running.
{noformat}



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