You can stop HBase clusters or individual hosts following these instructions.
        If you want to stop a single RegionServer, do the following:
- 
                In Cloudera Manager, select the HBase service.
            
 - 
                Click the Instance tab.
            
 - 
                From the list of Role Instances, select the RegionServer or RegionServers you
                    want to stop.
            
 - 
                Select Actions for Selected.
            
 - 
                Select Stop.
                
Stop happens immediately and does not redistribute the regions. It
                    issues a SIGTERM(kill -5) signal.
             
If you want to stop a single HMaster, do the following:
- 
                In Cloudera Manager, select the HBase service.
            
 - 
                Click the Instance tab.
            
 - 
                From the list of Role Instances, select the HMaster or HMasters you want to
                    stop.
            
 - 
                Select Actions for Selected.
            
 - 
                Select Stop.
                
Stop happens immediately and does not redistribute the regions. It
                    issues a SIGTERM(kill -5) signal.
             
If you want to stop the entire cluster, do the following:
- 
                In Cloudera Manager, select the HBase service.
            
 - 
                Click the Actions button.
            
 - 
                Select Stop.