Technical Preview Features

The following features are available within HDP 2.3, 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.

Table 1.6. Technical Previews

Component	Feature
Cloudbreak	Autoscaling (previously called Periscope) of a cluster
HBase and Phoenix	Phoenix Query Server (PHOENIX-971) Support for `init.d` scripts Phoenix Query Server RPC Throttling Phoenix-Spark Integration
Kafka	SSL
Ranger	Security features for data governance: global policies by metadata tags and searchable security access audit
Slider	Support for Docker-based application packaging (SLIDER-780)
Spark	SparkSQL, programmatically with SQLContext (not supported with Thrift Server - JDBC/ODBC) DataFrame API (SPARK-5097) Spark Streaming ML Pipeline API in PySpark (SPARK-3530) ORC file support Dynamic Executor Allocation
Storm	User Impersonation (STORM-446)
YARN	NodeManager: add cgroup support for disk I/O isolation (YARN-2619) Add support for network I/O isolation/scheduling for containers (YARN-2140)

​Technical Preview Features

Technical Preview Features