Install cloudera cluster cheats, add VM node.

1. disable selinux at all hosts /etc/selinux/config
2. disable iptables at master or fix rules
3. set all node hosts of cluster in all /etc/hosts
4. change the host name in all /etc/cloudera-scm-agent/config.ini

1. enter into runned instance and change mac adress in /etc/sysconfig/network-scripts/ifcfg-eth0
2. shutdown
3. change mac address into Virtual Box VM preferences
4. start VM
5. ifconfig
6. add host to /etc/hosts
• 10.0.0.10   node10.cloudera node10
7. change host at  /etc/sysconfig/network
• HOSTNAME=node10.clouder