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https://issues.apache.org/jira/browse/HDFS-4838?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14394914#comment-14394914
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Dongming Liang commented on HDFS-4838:
--------------------------------------

Hi Jian [~ jianhe], I've attached a patch for it. Could you review it please? 
Thanks.

> HDFS should use the new methods added in HADOOP-9574
> ----------------------------------------------------
>
>                 Key: HDFS-4838
>                 URL: https://issues.apache.org/jira/browse/HDFS-4838
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Jian He
>            Assignee: Dongming Liang
>         Attachments: HDFS-4838.patch
>
>
> HADOOP-9574 copies addPersistedDelegationToken in 
> hdfs.DelegationTokenSecretManager to 
> common.AbstractDelegationTokenSecretManager. HDFS code should be removed and 
> should instead use the code in common.
> Also, Is it possible to rename logUpdateMasterKey to storeNewMasterKey AND 
> logExpireToken to removeStoredToken for persisting and recovering keys/tokens?
> These methods are likely to be common methods and be used by overridden 
> secretManager.



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