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https://issues.apache.org/jira/browse/HDFS-984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12835128#action_12835128
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dhruba borthakur commented on HDFS-984:
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Can you please explain the use-case why these need to be persisted?
> Delegation Tokens should be persisted in Namenode
> -------------------------------------------------
>
> Key: HDFS-984
> URL: https://issues.apache.org/jira/browse/HDFS-984
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: Jitendra Nath Pandey
> Assignee: Jitendra Nath Pandey
>
> The Delegation tokens should be persisted in the FsImage and EditLogs so that
> they are valid to be used after namenode shutdown and restart.
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