The following are changes in Oracle Big Data Appliance release 4 (4.0):
New Features
Oracle Big Data SQL 1.0.0
Oracle Big Data SQL supports queries against vast amounts of big data stored in multiple data sources, including HDFS and Hive. You can view and analyze data from various data stores together, as if it were all stored in an Oracle database. Support for Oracle Big Data SQL includes the following new features in Oracle Database:
DBMS_HADOOP PL/SQL package
Hive static data dictionary views
Access drivers for Hadoop and Hive
Oracle Big Data SQL is an installation option, which you can specify using the Oracle Big Data Appliance Configuration Generation Utility.
You can monitor and manage Oracle Big Data SQL using the bdacli command and Cloudera Manager.
See "bdacli" and Oracle Big Data Appliance Software User's Guide.
Service Migration
The bdacli utility can migrate services from a failing critical node to a healthy noncritical node. It can also remove failing critical and noncritical nodes from a cluster, and restore them to the cluster after repairs. See "bdacli" and Oracle Big Data Appliance Software User's Guide.
Software Upgrades
Cloudera's Distribution including Apache Hadoop 5.1.0
Cloudera Manager 5.1.1
Perfect Balance 2.2.0
Oracle Data Integrator Agent 12.1.3.0 (for Oracle Big Data Connectors)
Oracle NoSQL Database Zone Support
The Oracle Big Data Appliance Configuration Generation Utility and the mammoth -e command support multiple zones on Oracle NoSQL Database clusters. You can add nodes to an existing zone, or create a new primary or secondary zones.
See "Oracle NoSQL Configuration" and "Mammoth Software Installation and Configuration Utility".
Multiple Rack Clusters
You can now install a cluster on multiple racks using one cluster_name-config.json file.