HBase - hbase-policy.xml

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    security.client.protocol.acl
    *
    ACL for ClientProtocol and AdminProtocol implementations (ie. 
    clients talking to HRegionServers)
    The ACL is a comma-separated list of user and group names. The user and 
    group list is separated by a blank. For e.g. "alice,bob users,wheel". 
    A special value of "*" means all users are allowed.
  

  
    security.admin.protocol.acl
    *
    ACL for HMasterInterface protocol implementation (ie. 
    clients talking to HMaster for admin operations).
    The ACL is a comma-separated list of user and group names. The user and 
    group list is separated by a blank. For e.g. "alice,bob users,wheel". 
    A special value of "*" means all users are allowed.
  

  
    security.masterregion.protocol.acl
    *
    ACL for HMasterRegionInterface protocol implementations
    (for HRegionServers communicating with HMaster)
    The ACL is a comma-separated list of user and group names. The user and 
    group list is separated by a blank. For e.g. "alice,bob users,wheel". 
    A special value of "*" means all users are allowed.