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From "Xiao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-12400) Provide a way for NN to drain the local key cache before re-encryption
Date Fri, 08 Sep 2017 03:53:02 GMT

     [ https://issues.apache.org/jira/browse/HDFS-12400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiao Chen updated HDFS-12400:
-----------------------------
      Resolution: Fixed
    Hadoop Flags: Reviewed
          Status: Resolved  (was: Patch Available)

Committed to trunk and branch-3.0

> Provide a way for NN to drain the local key cache before re-encryption
> ----------------------------------------------------------------------
>
>                 Key: HDFS-12400
>                 URL: https://issues.apache.org/jira/browse/HDFS-12400
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: encryption
>    Affects Versions: 3.0.0-beta1
>            Reporter: Xiao Chen
>            Assignee: Xiao Chen
>         Attachments: HDFS-12400.01.patch, HDFS-12400.02.patch
>
>
> In HDFS-12359, a fix for the KMS ACLs required for re-encryption was done. As part of
the fix,  the following code is used to make sure the local provider cache in the NN is drained.
> {code:java}
> if (dir.getProvider() instanceof CryptoExtension) {
>   ((CryptoExtension) dir.getProvider()).drain(keyName);
> }
> {code}
> This doesn't work, because the provider is {{KeyProviderCryptoExtension}} instead of
{{CryptoExtension}} - the latter is composite of the former.
> Unfortunately unit test didn't catch this, because it conveniently rolled the from the
NN's provider.



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