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From "Xiaoyu Yao (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8830) Support add/remove directories to an existing encryption zone
Date Tue, 28 Jul 2015 20:24:04 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiaoyu Yao updated HDFS-8830:
-----------------------------
    Attachment:     (was: HDFS-8830.01.patch)

> Support add/remove directories to an existing encryption zone
> -------------------------------------------------------------
>
>                 Key: HDFS-8830
>                 URL: https://issues.apache.org/jira/browse/HDFS-8830
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Xiaoyu Yao
>            Assignee: Xiaoyu Yao
>         Attachments: HDFS-8830.01.patch
>
>
> This is the first step toward better "Scratch space" and "Soft Delete" support. We remove
the assumption that the hdfs directory and encryption zone is 1 to 1 mapped and can't be changed
once created.
> The encryption zone creation part is kept As-Is from Hadoop 2.4. We generalize the encryption
zone and its directories from 1:1 to 1:many. This way, other directories such as scratch can
be added to/removed from encryption zone as needed. Later on, files in these directories can
be renamed within the same encryption zone efficiently. 



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