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https://issues.apache.org/jira/browse/NIFI-8787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17382141#comment-17382141
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ASF subversion and git services commented on NIFI-8787:
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Commit 44779216658c55a2278dbc523ba1b4b08b8ef083 in nifi's branch
refs/heads/main from Peter Gyori
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=4477921 ]
NIFI-8787: Wrapped hdfs.exists() call in UGI.doAs() in GetHDFS processor (#5217)
* NIFI-8787: Wrapped hdfs.exists() call in UGI.doAs() in GetHDFS processor
* NIFI-8787: Unit tests updated
> GetHDFS hdfs.exists() call not wrapped in UGI.doAs()
> ----------------------------------------------------
>
> Key: NIFI-8787
> URL: https://issues.apache.org/jira/browse/NIFI-8787
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 1.14.0
> Reporter: Peter Gyori
> Assignee: Peter Gyori
> Priority: Major
> Time Spent: 20m
> Remaining Estimate: 0h
>
> In GetHDFS.performListing() before listing the files in the directory, it is
> checked if the directory actually exists.
> However, the hdfs.exists(directoryPath) call is not wrapped in UGI.doAs().
> HDFS operations should be wrapped in UGI.doAs() just like in NIFI-4323.
> Also, it is important to call getUGI() before FileSystem operations because
> that is where relogin and error handling is (like NIFI-7948).
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