RM
Get_RM_URL : http://RM:8088/ws/v1/cluster/info && http://RM:8088/ws/v1/cluster
NM
Get_ONE_NM_URL : http://RM:8088/ws/v1/cluster/nodes/NM:8041
Get_ALL_NM_URL : http://RM:8088/ws/v1/cluster/nodes
NN
http://NN:50070/jmx
http://NN:50070/jmx?get=name::vlue
DN
http://NN:50070/jmx?get=Hadoop:service=NameNode,name=NameNodeInfo::DeadNodes
