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https://issues.apache.org/jira/browse/HDFS-11210?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Chen updated HDFS-11210:
-----------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 3.0.0-alpha3
Release Note:
<!-- markdown -->
An `invalidateCache` command has been added to the KMS.
The `rollNewVersion` semantics of the KMS has been improved so that after a
key's version is rolled, `generateEncryptedKey` of that key guarantees to
return the `EncryptedKeyVersion` based on the new key version.
Status: Resolved (was: Patch Available)
Added the one line comment on top of patch 5, and committed to trunk.
Thanks Andrew for the great comments!
> Enhance key rolling to guarantee new KeyVersion is returned from
> generateEncryptedKeys after a key is rolled
> ------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-11210
> URL: https://issues.apache.org/jira/browse/HDFS-11210
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: encryption, kms
> Affects Versions: 2.6.5
> Reporter: Xiao Chen
> Assignee: Xiao Chen
> Fix For: 3.0.0-alpha3
>
> Attachments: HDFS-11210.01.patch, HDFS-11210.02.patch,
> HDFS-11210.03.patch, HDFS-11210.04.patch, HDFS-11210.05.patch
>
>
> To support re-encrypting EDEK, we need to make sure after a key is rolled, no
> old version EDEKs are used anymore. This includes various caches when
> generating EDEK.
> This is not true currently, simply because no such requirements / necessities
> before.
> This includes
> - Client Provider(s), and corresponding cache(s).
> When LoadBalancingKMSCP is used, we need to clear all KMSCPs.
> - KMS server instance(s), and corresponding cache(s)
> When KMS HA is configured with multiple KMS instances, only 1 will receive
> the {{rollNewVersion}} request, we need to make sure other instances are
> rolled too.
> - The Client instance inside NN(s), and corresponding cache(s)
> When {{hadoop key roll}} is succeeded, the client provider inside NN should
> be drained too.
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