Device deletion blacklist does not prevent alarms

Document ID : KB000112307
Last Modified Date : 28/08/2018
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Issue:
when a device is deleted in USM with prevent rediscovery the blacklist should prevent the following 

rediscovery of device by discovery_server 
publication of QOS by data_engine 
publication of alarms by NAS 

however we have seen that new alarms are generated after the device is deleted
Resolution:
There is no permanent solution at this time.  The issue is currently being researched.  Additional information will be provided as it becomes available. 
Additional Information:
case 1172114
DE382660