Siddharth Wagle created AMBARI-5234:
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             Summary: Add new Maintenance States to support different operation 
levels.
                 Key: AMBARI-5234
                 URL: https://issues.apache.org/jira/browse/AMBARI-5234
             Project: Ambari
          Issue Type: Task
          Components: controller
    Affects Versions: 1.5.0
            Reporter: Siddharth Wagle
            Assignee: Siddharth Wagle
             Fix For: 1.6.0




1. The API calls to perform all backend operations needs to provide a “source” 
element in the “RequestInfo” properties to identify the logical level at which 
the operation is executed.

Possible levels:
{CLUSTER, SERVICE, HOST_COMPONENT, HOST}

Note: Service component is analogous to Service, no level specification needed 
at the moment.

2. The current states for Maintenance mode will be modified to add more context 
to the IMPLIED state.




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