What User Accounts Do People Use For Team Dev?

[Dan Milstein]

Best-practices-type question: when a single cluster is being used by a  
team of folks to run jobs, how do people on this list handle user  
accounts?

Many of the examples seem to show everything being run as root on the  
master, which is hard to imagine is a great idea.

Do you:

 - Create a distinct account for every developer who will need to run  
jobs?

 - Create a single hadoop-dev or hadoop-jobs account, have everyone  
use that?

 - Just stick with running it all as root?

Thanks,
-Dan Milstein