Sahara/ReleaseNotes/Juno

Key New Features

• Data processing UI was fully merged into Horizon.
• Support of Cloudera Hadoop Distribution was added.
• Support of Apache Spark was added. Supported versions are 0.9.1 and 1.0.0. Elastic data processing (EDP) engine was refactored a lot to support non-Oozie workflow engines.
• Support of Apache Hadoop 2.4.1 was added in addition to existing 1.2.1 and 2.3.0. Version 2.3.0 is deprecated in Juno.
• Support of multi region deployments.
• Hadoop Swift authentication using keystone trust mechanism. Now Hadoop can access data in Swift without storing credentials in config files.
• Ceilometer integration was added. Now Sahara notifies Ceilometer about all cluster state changes.
• Cluster provisioning error handling was improved. If something goes wrong during scaling, cluster will rollback to original state.
• Added ability to specify security groups for each of node groups. Also Sahara could automatically create security group with only required ports open.

Known Issues

• Bug 1271349: Sahara requires root privileges to access VMs via namespaces.