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From "anishek (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-18341) Add repl load support for adding "raw" namespace for TDE with same encryption keys
Date Thu, 28 Dec 2017 09:20:00 GMT

    [ 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:
--------------------------------

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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