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https://issues.apache.org/jira/browse/HDFS-14983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16973036#comment-16973036
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Akira Ajisaka commented on HDFS-14983:
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The cost of restarting DFSRouter is much lower than restarting NameNode, so I'm
thinking the priority is not high (Just restarting DR is okay).
> RBF: Add dfsrouteradmin -refreshSuperUserGroupsConfiguration command option
> ---------------------------------------------------------------------------
>
> Key: HDFS-14983
> URL: https://issues.apache.org/jira/browse/HDFS-14983
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: rbf
> Reporter: Akira Ajisaka
> Priority: Minor
>
> NameNode can update proxyuser config by -refreshSuperUserGroupsConfiguration
> without restarting but DFSRouter cannot.
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