Colm O hEigeartaigh shows how to load users and groups into Apache Ranger from LDAP:
For the purposes of this tutorial, we will use OpenDS as the LDAP server. It contains a domain called “dc=example,dc=com”, and 5 users (alice/bob/dave/oscar/victor) and 2 groups (employee/manager). Victor, Oscar and Bob are employees, Alice and Dave are managers. Here is a screenshot using Apache Directory Studio:
Colm’s scenario uses OpenDS, but you can integrate with Active Directory as well.