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https://issues.apache.org/jira/browse/HDFS-9688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15123865#comment-15123865
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Xiaoyu Yao commented on HDFS-9688:
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bq. 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.
[~zhz], Do you plan to block rename EZ root on 2.7 and forward? I don't think
we should block rename EZ root, which is an incompatible change from 2.7 that
can break Trash support for HDFS encryption. If I understand the nested EZ
correctly, the renamed nested EZ will still be encrypted with its own zone key
no matter the destination is encrypted with different keys or not.
> 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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