Hello, I activated in the storage plugins HDFS, HIVE and Nifi. Unfortunately when restarting the components I have this error for HDFS and HIVE : 2018-05-16 17:30:33,100 - Will retry 35 time(s), caught exception: Connection failed to Ranger Admin. Reason - [Errno 111] Connection refused.. Sleeping for 8 sec(s) 2018-05-16 17:30:41,109 - Will retry 34 time(s), caught exception: Connection failed to Ranger Admin. Reason - [Errno 111] Connection refused.. Sleeping for 8 sec(s) 2018-05-16 17:30:49,118 - Will retry 33 time(s), caught exception: Connection failed to Ranger Admin. Reason - [Errno 111] Connection refused.. Sleeping for 8 sec(s) On the other hand Nifi starts him correctly. Have I forgotten something? ... View more