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https://issues.apache.org/jira/browse/NIFI-3583?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gray Gwizdz updated NIFI-3583:
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    Attachment: 0001-NIFI-3853-PutFile-should-attempt-to-replace-files-at.patch

Good call Eugene, added this functionality and you can find a new patch 
attached :)

Thanks!
Gray

> PutFile should attempt to replace files atomically
> --------------------------------------------------
>
>                 Key: NIFI-3583
>                 URL: https://issues.apache.org/jira/browse/NIFI-3583
>             Project: Apache NiFi
>          Issue Type: Improvement
>          Components: Extensions
>    Affects Versions: 0.7.1, 1.1.1
>         Environment: On Windows, NIO2's Files.move operation may not allow 
> atomic file replacement, in which case it would have to fall back to the 
> existing method.
>            Reporter: Eugene Hart
>            Assignee: Gray Gwizdz
>            Priority: Trivial
>         Attachments: 
> 0001-NIFI-3853-PutFile-should-attempt-to-replace-files-at.patch
>
>
> A PutFile configured with the "replace" conflict resolution strategy will 
> first delete any existing file and then move the new temporary file into 
> place. This causes there to be a small period of time where the file does not 
> exist at all. This could cause problems with other processes relying on this 
> file to always exist.



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