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https://issues.apache.org/jira/browse/NIFI-3574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15905311#comment-15905311
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ASF GitHub Bot commented on NIFI-3574:
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Github user mattyb149 commented on the issue:
https://github.com/apache/nifi/pull/1578
+1 LGTM, ran unit tests and contrib-check, thank you for the fix! Merging
to master
> 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 annotation should be added to the processor.
> This should insulate it from other static side effects.
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