Can't load the same library more times

[kewang]

If I load same type twice or more, always become latest variables. Like cdh1 and cdh2:

cdh1:
  type: hbase
  zookeeper: localhost:2181
  extra: aaa
cdh2:
  type: hbase
  zookeeper: localhost:2181
  extra: bbb
cdh3:
  type: template