I've definitely been burned by inconsistency on Amazon API inconsistency. At least 3 years ago, Cloudformation, Data Pipeline and an EMR specific API all have t

I've definitely been burned by inconsistency on Amazon API inconsistency. At least 3 years ago, Cloudformation, Data Pipeline and an EMR specific API all have three differing sets of params for defining an EMR cluster and just because something was supported in one of them didn't mean it was even in the others.