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https://issues.apache.org/jira/browse/NIFI-385?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15892429#comment-15892429
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ASF GitHub Bot commented on NIFI-385:
-------------------------------------

Github user jtstorck commented on the issue:

    https://github.com/apache/nifi/pull/1528
  
    FYI, some issues have been noticed with Hadoop and Kerberos in the NiFi 
HDFS processors.  There's JIRA that I'm working on to fix a scenario where 
Kerberos principals end up getting switched between multiple processors.  It's 
due to the UserGroupInformation class being shared by two instances of 
processors from the same NAR.  The fix involves not depending on 
nifi-hadoop-libraries-nar, and including the hadoop-client dependency directly 
in the nifi-hdfs-processors pom.  
    
    Once the Kite processors support Kerberos, they'll most likely have the 
same issue, and a similar change will have to be made to the POMs.
    
    For reference, the JIRA is: https://issues.apache.org/jira/browse/NIFI-3520


> Add Kerberos support in nifi-kite-nar
> -------------------------------------
>
>                 Key: NIFI-385
>                 URL: https://issues.apache.org/jira/browse/NIFI-385
>             Project: Apache NiFi
>          Issue Type: Improvement
>          Components: Extensions
>            Reporter: Ryan Blue
>
> Kite should be able to connect to a Kerberized Hadoop cluster to store data. 
> Kite's Flume connector has working code. The Kite dataset needs to be 
> instantiated in a {{doPrivileged}} block and its internal {{FileSystem}} 
> object will hold the credentials after that.



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