fix ganglia
fix zookeeper user creation
rename jn label
backup env file
remove zookeeper references
restart https on ganglia install
improve monitor install
comment in monitor start
dn iptables
dn check
hive server iptables
external hive server start
externalise hive client check
rename hive start/stop
remove comments
remove unused reference
remove line
zookeeper iptables
check zookeeper registration
check service state after nn start