What is the most effective way to completely delete a hadoop cluster definition from Cloudera Manager? After using the API/GUI to delete an existing hadoop cluster definition, subsequent cluster launches fail when setting up the Hive Metastore. Is data being persisted after a cluster is deleted? Our team would like to reuse our Cloudera Server and Agent setup, but try different Hadoop cluster configurations. What is the best wasy to get back to a "clean slate" state with Cloudera Manager?