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Windows On-Premises Single Active Directory Realm User's Desktop Hadoop Cluster Corporate Network User(user) HadoopClient User'sTicketCache HadoopService(eg hdfs) Service'sTicketCache ActiveDirectory Contains user & serviceaccounts and groups 1kinit(hdfs):hdfs-tgt 2store(hdfs-tgt) 3login(guest):user-tgt 4store(user-tgt) 5hadoop fs ls 6load():user-tgt 7tgsReq(user-tgt):user-hdfs-st 8ls[user-hdfs-st](dir):files 9verify(user-hdfs-st) 10groupLookup(user):groups
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