Hi Alim,   I just started to repeat our work and found the following error.  My testing environment is : Ubuntu 16.04;  MySQL and NiFi are installed in the system, I could access to MySQL via the terminal in a remote Windows PC. Does anyone know how to address the issue? Thanks. Kind regards,   Raymond ... View more

@Ramkrishna Utpat My recommendation at this time would be to raise an Apache Jira against NiFi. The error is being returned by the hive client library to NiFi. NiFi is taking that client response which is the Hive server response to the client library and making a routing decision. Not sure why NiFi feels this specific error is a comms.failure instead of a not.found condition. May be something in response, may be something in NiFi code itself is missing. There is nothing else we can configure from the NiFi processor side here. Thank you, Matt ... View more