That is one of the exercises that we do in the new Designing and Building Big Data Applications course. Check the link for locations and dates for the class. ... View more

I think you aren't setting up the /etc/hosts file properly. You'll need to have it configured with all of the hosts for your entire cluster. When you go to add hosts, use the host names from /etc/hosts instead of the AWS ones.   If this is a POC, I'd recommend using the built-in AWS spin up wizard. It takes care of the names for you. ... View more