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https://issues.apache.org/jira/browse/HDFS-3592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14101101#comment-14101101
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Colin Patrick McCabe commented on HDFS-3592:
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This was supposed to be about rename/rename2, not about mkdirs2, which does not
exist... :P Sorry. Fixed the description and title.
> libhdfs should expose ClientProtocol::rename2
> ---------------------------------------------
>
> Key: HDFS-3592
> URL: https://issues.apache.org/jira/browse/HDFS-3592
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 2.0.0-alpha, 3.0.0
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Priority: Minor
> Fix For: 3.0.0, 2.6.0
>
>
> It would be nice if libhdfs exposed rename2. This version of rename is much
> more verbose about any errors that occur-- it throws AccessControlException,
> FileAlreadyExists, FileNotFoundException, ParentNotDirectoryException, etc.
> The original rename returns false in many distinct cases, making it ambiguous
> exactly what the problem was.
> For something like fuse_dfs, it is very important to return the correct errno
> code when an error has occurred. rename2 would allow us to do that.
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