Hello Ambari developers, We have been thinking about the possibility of automating the Ambari cluster upgrade process. Ambari should be able to automatically upgrade the clusters that it had deployed. As the first step, here is a requirements doc: https://issues.apache.org/jira/secure/attachment/12675128/Ambari%2BCluster%2BUpgrade%2BRequirements.pdf
JIRA: https://issues.apache.org/jira/browse/AMBARI-7804 Please review and let me know your feedback. I'm writing a design doc as a follow up to this one. Will send it out soon. Thanks, Newton
