HDP Node definition
HDP Node means a Node that runs the HDP software. Note: Nodes only used for cluster access that do not host HDP services are not considered HDP Nodes. Examples of HDP services include, but are not limited to, Zookeeper, ZKFC, JournalNode, NameNode, DataNode, ResourceManager, NodeManager, HistoryServer, TimelineServer, SparkHistoryServer, HMaster, RegionServer, HiveServer2, and HiveMetastoreService.