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https://issues.apache.org/jira/browse/YARN-4629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15113259#comment-15113259
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Daniel Templeton commented on YARN-4629:
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Right problem, wrong solution. The client should be replacing the _HOST string
with the RM's hostname, which is what MR does.
> Distributed shell breaks under strong security
> ----------------------------------------------
>
> Key: YARN-4629
> URL: https://issues.apache.org/jira/browse/YARN-4629
> Project: Hadoop YARN
> Issue Type: Bug
> Components: applications/distributed-shell
> Affects Versions: 2.7.1
> Reporter: Daniel Templeton
> Assignee: Daniel Templeton
>
> If the auth_to_local is set to map requests from unknown hosts to nobody, the
> dist shell app fails. The reason is that the client doesn't translate the
> _HOST placeholder to the local hostname.
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