Hadoop Intallation on Cent OS

This is a really easy task but you should be careful. I will post the link to the tutorial that i followed to installed. 

1. Put your all files inside of a folder in your home directory. In some tutorials they put those files in /usr and other locations. This will be a problem sometimes because of insufficient permission to execution. 
2. Please make sure that you properly done that ssh key generation part because it is really needed when it comes to working with hadoop. That ssh key procedure will allows to login to localhost with out authentication. you can check this ssh key task is properly effected by issuing 

          ssh localhost

          this will prompt last time you log successfully.

      This is the tutorial that i followed and if you have any question please post here. 

http://tecadmin.net/setup-hadoop-2-4-single-node-cluster-on-linux/

Thanks.