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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:
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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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