This release (1.2.2) of Apache Ambari includes the following new features and improvements:
Host-level alerts
Paging controls on zoomed graphs
Can customize Ambari Web port number
Support for Active Directory-based authentication
Quicker Install/Start/Test progress display
Ambari Server upgrade paths: 1.2.0 -> 1.2.2 and 1.2.1 -> 1.2.2
