Link to series of videos and blog posts that cover:
Introduction to HDF
HDF 2.0 + Ambari - How To
Demos of creating dataflows with NiFi, Kafka and Storm
In-depth explanation of new features of HDF 2.0 - new UI, multi-tenancy, zero master clustering, Apache MiNiFi
77 questions and answers about HDF - examples: how to connect NiFi with enterprise schedulers like ESP or Zeke, how per processor authorization can be utilized, "scheduling" of flows