ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/role_command_order.json

{
  "general_deps" : {
    "_comment" : "dependencies for HDFS",
    "SECONDARY_NAMENODE-START": ["NAMENODE-START"],
    "SECONDARY_NAMENODE-RESTART": ["NAMENODE-RESTART"],
    "HDFS_SERVICE_CHECK-SERVICE_CHECK": ["NAMENODE-START", "DATANODE-START",
      "SECONDARY_NAMENODE-START"],
    "NAMENODE-STOP": ["RESOURCEMANAGER-STOP", "NODEMANAGER-STOP",
      "HISTORYSERVER-STOP", "HBASE_MASTER-STOP", "METRICS_COLLECTOR-STOP"],
    "DATANODE-STOP": ["RESOURCEMANAGER-STOP", "NODEMANAGER-STOP",
      "HISTORYSERVER-STOP", "HBASE_MASTER-STOP"],
    "DATANODE-START" : ["RANGER_USERSYNC-START"],
    "NAMENODE-START" : ["RANGER_USERSYNC-START"]
  },
  "_comment" : "Dependencies that are used in HA NameNode cluster",
  "namenode_optional_ha": {
    "NAMENODE-START": ["ZKFC-START", "JOURNALNODE-START", "ZOOKEEPER_SERVER-START"],
    "ZKFC-START": ["ZOOKEEPER_SERVER-START"],
    "ZKFC-STOP": ["NAMENODE-STOP"],
    "JOURNALNODE-STOP": ["NAMENODE-STOP"]
  }
}