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From "Sanjay Radia (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10919) Copy command should preserve raw.* namespace extended attributes
Date Tue, 12 Aug 2014 18:27:12 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14094447#comment-14094447
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Sanjay Radia commented on HADOOP-10919:
---------------------------------------

bq. Given that, I'm wondering what would the purpose be for checking that the target is an
EZ? 
You mentioned that in your doc and hence I raised it here.

Given that your document mentioned that the target and src must match wrt to EZ I thought
that you had made distcp  transparent: ie distcp will check if  any dir in the subtree is
EZ and will prefix by /.reserved/.raw. And I think that is a good idea since it will mean
that all existing distcp scripts will continue to work if you set the EZ on the src and target
correctly.

> 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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