For the Hive View to access HDFS, the Ambari Server daemon hosting the view needs to act as the proxy user for HDFS. This allows Ambari to submit requests to HDFS on behalf of the users using the Hive View. This is critical since the Hive View will store metadata about their user Hive queries in HDFS. This also means users that will access the Hive View must have a user directory setup in HDFS.