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https://issues.apache.org/jira/browse/HADOOP-8561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13408342#comment-13408342
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Owen O'Malley commented on HADOOP-8561:
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I'm not against making an environment variable/property to set the user, but we
might as well use the one we already have and enable HADOOP_USER_NAME
in secure mode to mean act as a proxy for the given user.
> Introduce HADOOP_PROXY_USER for secure impersonation in child hadoop client
> processes
> -------------------------------------------------------------------------------------
>
> Key: HADOOP-8561
> URL: https://issues.apache.org/jira/browse/HADOOP-8561
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Reporter: Luke Lu
> Assignee: Yu Gao
>
> To solve the problem for an authenticated user to type hadoop shell commands
> in a web console, we can introduce an HADOOP_PROXY_USER environment variable
> to allow proper impersonation in the child hadoop client processes.
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