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hduser1@bycb4y1:/$ ssh hadoop-namenode
Welcome to Ubuntu 12.04.2 LTS (GNU/Linux 3.5.0-23-generic x86_64)

 * Documentation:  https://help.ubuntu.com/

Last login: Mon Aug  5 17:05:47 2013 from 192.168.41.53
hduser1@bycb4y1:~$

hello

hear i have problem in login into hadoop-namenode host.when i am login into hadoop-namenode host. login is done successfully but my working host(bycb4y1) is not change. so i can't format the namenode. and i am also try with sudo user

my /etc/hosts file as below

192.168.41.53    hadoop-namenode
192.168.41.87    hadoop-datanode1
192.168.41.67    hadoop-datanode2
127.0.0.1 localhost
# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
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