[hadoop_all:children]
hadoop_masters
hadoop_slaves
qjournal_servers
zookeeper_servers

[hadoop_master_primary]
hadoop1

[hadoop_master_secondary]
hadoop2

[hadoop_masters:children]
hadoop_master_primary
hadoop_master_secondary

[hadoop_slaves]
hadoop1
hadoop2
hadoop3

[qjournal_servers]
hadoop1
hadoop2
hadoop3

[zookeeper_servers]
hadoop1 zoo_id=1
hadoop2 zoo_id=2
hadoop3 zoo_id=3