Upgrading Whirr from an Earlier CDH 5 Release to the Latest CDH 5 Release
Step 2: Destroy the Cluster.
Whirr clusters are normally short-lived. If you have a running cluster, destroy it: see Destroying a cluster.
Step 3: Install the New Version of Whirr
See Installing Whirr.
The upgrade is now complete. For more information, see Managing a Cluster with Whirr,and Viewing the Whirr Documentation.