If Zookeeper cannot be started, check for DNS resolution.
$ hostname
$ hostname -f
$ python -c 'import socket; print socket.getfqdn(), socket.gethostbyname(socket.getfqdn())'
If Zookeeper cannot be started, check for DNS resolution.
$ hostname
$ hostname -f
$ python -c 'import socket; print socket.getfqdn(), socket.gethostbyname(socket.getfqdn())'