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https://issues.apache.org/jira/browse/HDFS-15345?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Íñigo Goiri resolved HDFS-15345.
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    Fix Version/s: 3.4.0
     Hadoop Flags: Reviewed
       Resolution: Fixed

> RBF: RouterPermissionChecker#checkSuperuserPrivilege should use UGI#getGroups 
> after HADOOP-13442
> ------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-15345
>                 URL: https://issues.apache.org/jira/browse/HDFS-15345
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 2.7.5
>            Reporter: Xiaoyu Yao
>            Assignee: Xiaoyu Yao
>            Priority: Major
>             Fix For: 3.4.0
>
>
> HADOOP-13442 added UGI#getGroups to avoid list->array->list conversions. This 
> ticket is opened to change  RouterPermissionChecker#checkSuperuserPrivilege 
> to use UGI#getGroups. 



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