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https://issues.apache.org/jira/browse/HADOOP-10919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14093620#comment-14093620
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Charles Lamb commented on HADOOP-10919:
---------------------------------------

I should clarify case (1). If you are distcp'ing from the ez root or higher, 
then you don't need to pre-create the EZ because all of the raw.* xattrs will 
be preserved.

Given that, I'm wondering what would the purpose be for checking that the 
target is an EZ? 


> Copy command should preserve raw.* namespace extended attributes
> ----------------------------------------------------------------
>
>                 Key: HADOOP-10919
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10919
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 3.0.0
>            Reporter: Charles Lamb
>            Assignee: Charles Lamb
>             Fix For: fs-encryption (HADOOP-10150 and HDFS-6134)
>
>         Attachments: HADOOP-10919.001.patch, HADOOP-10919.002.patch
>
>
> Refer to the doc attached to HDFS-6509 for background.
> Like distcp -p (see MAPREDUCE-6007), the copy command also needs to preserve 
> extended attributes in the raw.* namespace by default whenever the src and 
> target are in /.reserved/raw. To not preserve raw xattrs, don't specify 
> /.reserved/raw in either the src or target. 



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