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https://issues.apache.org/jira/browse/NIFI-4631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16404954#comment-16404954
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Joseph Witt commented on NIFI-4631:
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[~mgaido] thanks for the PR. Can you describe how you tested it and what sort
of performance difference was observed on old vs new implementation?
> Improve ListFile performance (using walkFileTree)
> -------------------------------------------------
>
> Key: NIFI-4631
> URL: https://issues.apache.org/jira/browse/NIFI-4631
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Affects Versions: 1.4.0
> Reporter: Jeroen Dries
> Priority: Major
> Labels: performance
>
> The listfile processor is quite slow when recursing through large directory
> structures. (In my case an NFS mounted directory, on Linux.)
> A possible fix would be to use the Files.walkFileTree method, which is
> reported to be faster.
> Another option is mentioned in NIFI-4039
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