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# Generate root key
ssh-keygen -t rsa
 
#copy key
ssh-copy-id root@bi
 
# should be installed
yum -y install expect mksh.x86_64 libaio compat-libstdc++-33 pam.i686 ksh rpm-build ntp
 
# should be password less 
   chkconfig iptables off
   service iptables stop
   chkconfig ip6tables off
   service ip6tables stop
   iptables -F

Issues:

• The host should not be localhost 127.0.0.1
• The host should be written in /etc/hosts

Hadoop