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From "Xiao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10899) Add functionality to re-encrypt EDEKs.
Date Sat, 19 Nov 2016 02:03:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10899?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15678377#comment-15678377

Xiao Chen commented on HDFS-10899:

Thanks a lot [~andrew.wang] for the great reviews and also [~dilaver] for offline suggestions!
Still wip, but attaching for review.

What's changed in wip2:
- Split kms related change to a subtask.
- Addressed most comments. Except some items left as todo: : command usage, writelock when
talking to kms. Also structuring as iterator/visitor part isn't done, but inode based traversal
looks better now.

TODO items:
- cancel / verify commands
- better metrics
- lock tuning and potential batching communication with kms, based on test results.
- some additional tests for correctness (raised by Dilaver):
-- rm file while its EZ is being reencrypted
-- mv file while its EZ is being reencrypted
-- rm & recreate file while its EZ is being reencrypted
-- append to file while its EZ is being reencrypted

> Add functionality to re-encrypt EDEKs.
> --------------------------------------
>                 Key: HDFS-10899
>                 URL: https://issues.apache.org/jira/browse/HDFS-10899
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: encryption, kms
>            Reporter: Xiao Chen
>            Assignee: Xiao Chen
>         Attachments: HDFS-10899.wip.2.patch, HDFS-10899.wip.patch, Re-encrypt edek design
> Currently when an encryption zone (EZ) key is rotated, it only takes effect on new EDEKs.
We should provide a way to re-encrypt EDEKs after the EZ key rotation, for improved security.

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