Apache Ambari update to version 1.4.2. This release of Apache Ambari includes the new features and improvements:
- Ability to move Master Components (NN, SNN, JT, RM) 
- Simplified Local Repository Setup in Install Wizard 
- Support for multiple HBase masters 
- User customizable setting to disable “Background operations popup” 
- Stop/start all host components 
- Ability to add client components to a host 
- Ability to delete a host from a cluster 


