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https://issues.apache.org/jira/browse/HADOOP-9336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13589689#comment-13589689
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Kihwal Lee commented on HADOOP-9336:
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+1 on the code change, but more detailed comment on getRemoteUser() will be
nice, in order to avoid potential misuse.
> Allow UGI of current connection to be queried
> ---------------------------------------------
>
> Key: HADOOP-9336
> URL: https://issues.apache.org/jira/browse/HADOOP-9336
> Project: Hadoop Common
> Issue Type: Improvement
> Components: ipc
> Affects Versions: 0.23.0, 2.0.0-alpha, 3.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Critical
> Attachments: HADOOP-9336.branch-23.patch,
> HADOOP-9336.branch-23.patch, HADOOP-9336.patch, HADOOP-9336.patch
>
>
> Querying {{UGI.getCurrentUser}} is synch'ed and inefficient for short-lived
> RPC requests. Since the connection already contains the UGI, there should be
> a means to query it directly and avoid a call to {{UGI.getCurrentUser}}.
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