For HDP 2.6 there is a list of Service Users that are required if you don't allow local linux accounts. I can't find the equivalent for HDF 3.0. Closest thing I've found is this but it doesn't list the actual accounts. I need a list of accounts and groups that are required for installing the HDF tools like NiFi, Druid, Superset etc.
Thanks for pointing this out. This document is now in the works and I'll update this thread and the documentation shortly!