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https://issues.apache.org/jira/browse/NIFI-1536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15156877#comment-15156877
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Matthew Clarke commented on NIFI-1536:
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Tested nifi-hadoop-nar-0.6.0-SNAPSHOT.nar patch and was no longer able to
reproduce the condition reported in this ticket. Was successfully able to put
data to various HDFS configured clusters from the same source NiFi no matter
which was run first. (this inluded a non-kerberized HDFS, a kerberized HDFS,
and TDE directory on a kerberized HDFS). Ticket can be closed.
> multiple putHDFS processors can result in put failures.
> -------------------------------------------------------
>
> Key: NIFI-1536
> URL: https://issues.apache.org/jira/browse/NIFI-1536
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 0.5.0
> Environment: Java 1.8.0_60
> OSX Yosemite 10.10.5
> Reporter: Matthew Clarke
> Assignee: Oleg Zhurakousky
> Fix For: 0.5.1
>
>
> When multiple putHDFS processors exist, the first to run loads some config
> that is then used by other putHDFS processors that are started.
> I have two dataflows setup. One pushes data to a kerberized HDFS cluster
> while the other pushes data to a totally different non kerberized HDFS
> cluster.
> Each putHDFS is configured to use its own core-sites.xml. If I start the
> putHDFS that sends to the Kerberized HDFS cluster first, the other putHDFS
> will throw an error when it tries to send data to the non-kerberized HDFS
> cluster.
> ERROR [Timer-Driven Process Thread-7] o.apache.nifi.processors.hadoop.PutHDFS
> java.io.IOException: Failed on local exception: java.io.IOException: Server
> asks us to fall back to SIMPLE auth, but this client is configured to only
> allow secure connections.; Host Details : local host is: "<client
> hostname>/<client IP>"; destination host is: "<hdfs hostname>":<hdfs port>
> ....
> Caused by: java.io.IOException: Server asks us to fall back to SIMPLE auth,
> but this client is configured to only allow secure connections.
> Even if i stop the putHDFS that is sending to the kerberized HDFS and/or
> restart the putHDFS sending to the non kerberized HDFS, the above error
> persists.
> I need to restart NiFi to clear condition. After NiFi restart, if i run the
> putHDFS that sends to the non-kerberized HDFS first, the putHDFS to the
> kerberized HDFS will still work.
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