CDH4 administration through one account

[Raj Hadoop]

Hi,
 
I have a cluster CDH4. How can one perform hadoop admin without root access. 
Basically an account like 'john1' on the cluster want to have access to hdfs, 
mapred etc.,
 
Should 'john1' be included in the 'sudoers' file ?
 
What instructions should I ask System Admin team to have 'john1' access the 
hadoop accounts and perform hadoop admin realted activities.
 
Please advise.
 
Regards,
Raj