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https://issues.apache.org/jira/browse/HDFS-15344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17104646#comment-17104646
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Xiaoyu Yao commented on HDFS-15344:
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https://github.com/apache/hadoop/pull/2004
This is submit via github PR. Not sure why JIRA does not link to it
automatically as it used to.
> DataNode#checkSuperuserPrivilege should use UGI#getGroups after HADOOP-13442
> ----------------------------------------------------------------------------
>
> Key: HDFS-15344
> URL: https://issues.apache.org/jira/browse/HDFS-15344
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 2.7.5
> Reporter: Xiaoyu Yao
> Assignee: Xiaoyu Yao
> Priority: Major
>
> HADOOP-13442 added UGI#getGroups to avoid list->array->list conversions. This
> ticket is opened to change DataNode#checkSuperuserPrivilege to use
> UGI#getGroups.
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