I assume the <IP Address> should mean the IP of current ACTIVE namenode, if
current Drill version only supports "hdfs://<IP Address>:<Port>" format,
in Hadoop HA environment, it would be a problem to the Drill user when the
current active <IP Address> is demoted to STANDBY after namenode failover,
if it is the case, the availability of "file system storage" (most likely
and "hive" storage) would become unpredictable since Drill cannot support
HDFS HA environment.

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