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https://issues.apache.org/jira/browse/HDFS-9688?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhe Zhang updated HDFS-9688:
----------------------------
    Attachment: HDFS-9688-branch-2.8.02.patch

Thanks for the update [~aw]. I discussed with Andrew offline, this patch should 
actually be targeted for 2.8, and future maint releases of 2.6 and 2.7. 
Attaching a branch-2.8 patch.

[~andrew.wang] Could you take another look? A tricky issue is "rename of root 
dir of EZ". I just found it's not allowed in 2.6, but allowed in 2.7 and 
forward. So we need to update the patch when backporting to 2.6. Also, renaming 
the root dir of a nested EZ won't be allowed, because the destination will be 
in an EZ (the parent EZ). I think this is the right behavior for nested EZ, but 
please see if you agree.

> Test the effect of nested encryption zones in HDFS downgrade
> ------------------------------------------------------------
>
>                 Key: HDFS-9688
>                 URL: https://issues.apache.org/jira/browse/HDFS-9688
>             Project: Hadoop HDFS
>          Issue Type: Test
>          Components: encryption, test
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>         Attachments: HDFS-9688-branch-2.6.00.patch, 
> HDFS-9688-branch-2.6.01.patch, HDFS-9688-branch-2.8.02.patch
>
>




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