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https://issues.apache.org/jira/browse/HIVE-18341?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16305203#comment-16305203
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anishek commented on HIVE-18341:
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the /.reserved/raw virtual path seems to be documented, only in relation to
copying files via distcp, i think there will be some extra work w.r.t copying
the XATTR attributes if we want normal filesystem to use this optimization as
well.
> Add repl load support for adding "raw" namespace for TDE with same encryption
> keys
> ----------------------------------------------------------------------------------
>
> Key: HIVE-18341
> URL: https://issues.apache.org/jira/browse/HIVE-18341
> Project: Hive
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: anishek
> Assignee: anishek
> Fix For: 3.0.0
>
> Attachments: HIVE-18341.0.patch, HIVE-18341.1.patch
>
>
> https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-hdfs/TransparentEncryption.html#Running_as_the_superuser
> "a new virtual path prefix, /.reserved/raw/, that gives superusers direct
> access to the underlying block data in the filesystem. This allows superusers
> to distcp data without needing having access to encryption keys, and also
> avoids the overhead of decrypting and re-encrypting data."
> We need to introduce a new option in "Repl Load" command that will change the
> files being copied in distcp to have this "/.reserved/raw/" namespace before
> the file paths.
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