Translations:ReleaseNotes/Juno/90/en


 * Data processing UI was fully merged into OpenStack Dashboard (horizon).
 * Support of CDH 5.x 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 a node group. Also Sahara could automatically create security group with only required ports open.
 * Implemented distributed mode for Sahara: sahara-all process is decoupled into sahara-api and sahara-engine. You can run several instances of sahara-api and sahara-engine on different hosts. Note that the feature implementation is considered to be in alpha-state.