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https://issues.apache.org/jira/browse/HADOOP-10750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14059666#comment-14059666
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Alejandro Abdelnur commented on HADOOP-10750:
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Does the {{CachingKeyProvider}} need to be an extension? Or is just simply not
to override all provider methods?
The timeout for currentKeys should be configurable with a default of 30 or 60
secs (1 sec is too aggressive)
> KMSKeyProviderCache should be in hadoop-common
> ----------------------------------------------
>
> Key: HADOOP-10750
> URL: https://issues.apache.org/jira/browse/HADOOP-10750
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 3.0.0
> Reporter: Alejandro Abdelnur
> Assignee: Arun Suresh
> Attachments: HADOOP-10750.1.patch
>
>
> KMS has {{KMSCacheKeyProvider}}, this class should be available in
> hadoop-common for users of {{KeyProvider}} instances to wrap them and avoid
> several, potentially expensive, key retrievals.
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