[jira] [Created] (NIFI-3574) PutHiveStreaming affected by UserGroupInformation static side effects

["Bryan Rosander (JIRA)" <ji...@apache.org>]

Bryan Rosander created NIFI-3574:
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             Summary: PutHiveStreaming affected by UserGroupInformation static side effects 
                 Key: NIFI-3574
                 URL: https://issues.apache.org/jira/browse/NIFI-3574
             Project: Apache NiFi
          Issue Type: Bug
            Reporter: Bryan Rosander
            Assignee: Bryan Rosander


Currently if you point a PutHiveStreaming processor at a secure cluster, start it, stop it, and then reconfigure it to point at a different unsecured cluster, some state from the first connection is used by the underlying Hive and Hadoop libraries when attempting to connect to the second cluster.

This can be mitigated by ensuring that the UserGroupInformation.setConfiguration() method is used in onSetup() and that the approprate UserGroupInformation instance is used in ugi.doAs calls.

In order to isolate multiple PutHiveStreaming processors, a RequiresInstanceClassLoading should be added to the processor.  This should insulate it from other static side effects.



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