Apache Ambari Views
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Configuring Your Cluster for Falcon View

For Falcon View to access HDFS, the Ambari Server daemon hosting the view must act as the proxy user for HDFS. This allows Ambari to submit requests to HDFS on behalf of the Falcon View users. This is critical since Falcon View stores metadata about the user Falcon entity definitions. Falcon View users must have a user directory set up in HDFS.