Technical Preview Features

The following features are available within HDP 2.4.2 but are not ready for production deployment. Hortonworks encourages you to explore these technical preview features in nonproduction environments and then provide feedback on your experiences through the Hortonworks Community Forums.

Table 1.2. Technical Previews

Apache Component	Feature
HBase and Phoenix	Phoenix Query Server Phoenix Query Server (PHOENIX-971) Phoenix-Spark Integration RPC Throttling Support for `init.d` scripts
Hive	Hive Streaming ACID support
Slider	Support for Docker-based application packaging (SLIDER-780)
Spark	GraphX SparkR Spark-HBase connector
YARN	Add support for network I/O isolation and scheduling for containers (YARN-2140) Add cgroup support for disk I/O isolation in NodeManager (YARN-2619)
Zeppelin	Zeppelin 0.6.0 Install and Manage Zeppelin with Ambari 2.2.2 Improvements to PySpark support in Zeppelin One-way Zeppelin support for SSL Zeppelin support for form-based LDAP authentication

​Technical Preview Features

Technical Preview Features