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https://issues.apache.org/jira/browse/YARN-1057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13737009#comment-13737009
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Hitesh Shah commented on YARN-1057:
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[~yeshavora] Could you clarify what you mean by an invalid hostname/node?
> Add mechanism to check validity of a Node to be Added/Excluded
> --------------------------------------------------------------
>
> Key: YARN-1057
> URL: https://issues.apache.org/jira/browse/YARN-1057
> Project: Hadoop YARN
> Issue Type: Improvement
> Affects Versions: 2.1.0-beta
> Reporter: yeshavora
>
> Yarn does not complain while passing an invalid hostname like
> 'invalidhost.com' inside include/exclude node file. (specified by
> 'yarn.resourcemanager.nodes.include-path' or
> 'yarn.resourcemanager.nodes.exclude-path').
> Need to add a mechanism to check the validity of the hostname before
> including or excluding from cluster. It should throw an error / exception
> while adding/removing an invalid node.
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