The following features are available within HDP 2.2.6, but are not ready for production deployment. We encourage you to explore these technical preview features in non-production environments and provide feedback on your experiences through the Hortonworks Community Forums.
HDFS Transparent Data at Rest Encryption
Falcon Graph View of Dependencies
Phoenix support for local secondary indexes
YARN support for Docker
Create a Hive Sink based on the new Hive Streaming support (FLUME-1734)