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https://issues.apache.org/jira/browse/HDFS-10899?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15724041#comment-15724041
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Andrew Wang commented on HDFS-10899:
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I just looking at HADOOP-13827, and noticed that it also tries to drain the key
caches when a key is rolled.
Question, how will admins know when they can start reencryption after rolling a
key? This is also complicated because there can be multiple KMSs serving
requests, and only one of them sees the {{rollNewVersion}} call, and we have
layers of caches.
> 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-10899.01.patch, HDFS-10899.wip.2.patch,
> HDFS-10899.wip.patch, Re-encrypt edek design doc.pdf
>
>
> 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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