1. New Features

Ambari Administration

Support for managing users and groups that can access Ambari. This also introduces group support and the Ambari Admin privilege. See the Ambari Administration Guide for information on managing users and groups.

Ubuntu 12 Support

Installing and managing an HDP Stack cluster on Ubuntu 12 operating system.

Host Checks - THP Enabled

During host registration (either during cluster install or add hosts), Ambari will check status of Transparent Huge Page (THP) and warn if THP is enabled.

Delete ZooKeeper Server

Ability to delete ZooKeeper Server components from hosts.

Abort Background Operations

Ability to abort a background operation from Ambari Web. For running operations, a button is displayed to abort the operation.

Ambari Views

Support for the Views framework to deploy and manage pluggable UI components for Ambari Web. See the Ambari Administration Guide for information on managing Views. Refer to the Ambari Wiki for more information on building Views using the framework.

Ambari Blueprints Export with Configurations

When exporting a Blueprint from Ambari, the Blueprint now includes the configurations for the cluster. Refer to the Ambari Wiki for more information on using Blueprints.

ResourceManager HA

HDP Stack: Support for configuring ResourceManager HA from from Ambari Web.

Capacity Scheduler Refresh

HDP Stack: Support for performing a YARN Capacity Scheduler refresh from Ambari Web.

HDFS Rebalance

HDP Stack: Support for performing an HDFS rebalance from Ambari Web.

Service Configuration Versioning

When changing configurations, Ambari will generate a Service Configuration Version. The history of configuration changes is available, with an ability to view previous changes, compare between versions and to revert configurations.

Download Client Configs

Ability to download client configuration bundles from Ambari Web for each service client component.

Manage -env.sh Configurations

Ability to manage the -env.sh configuration files for each Service from Ambari (for example: hive-env.sh or hadoop-env.sh). These configurations are saved in Ambari, versioned and distributed to the cluster along with the other service configurations.

Set <final> properties

Ability to set configuration properties as <final>.

Single or Bulk Custom Properties

Support for adding custom configuration properties in single or bulk mode from Ambari Web. The Add Property dialog includes an option to enter the property in Single Mode (single name=value) or in Bulk Mode (multiple name=value pairs).