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https://issues.apache.org/jira/browse/HDFS-4428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13564678#comment-13564678
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Chris Nauroth commented on HDFS-4428:
-------------------------------------

+1

Version 2 of the patch addresses everything I mentioned.  I applied it locally 
and ran {{TestNativeIO}} and {{TestRBWBlockInvalidation}}.  Thanks, Colin!

                
> FsDatasetImpl should disclose what the error is when a rename fails
> -------------------------------------------------------------------
>
>                 Key: HDFS-4428
>                 URL: https://issues.apache.org/jira/browse/HDFS-4428
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.0.3-alpha
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>            Priority: Minor
>         Attachments: HDFS-4428.001.patch, HDFS-4428.002.patch
>
>
> It would be nice if {{FsDatasetImpl}} would print out an error message when a 
> rename fails, describing what went wrong.  This would make it a lot easier to 
> investigate and resolve test failures like HDFS-4051. 

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