[ https://issues.apache.org/jira/browse/YARN-1155?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13760128#comment-13760128 ] 

Steve Loughran commented on YARN-1155:
--------------------------------------

This would need to work for clusters where DNS doesn't resolve the hostnames, but instead /etc/hosts does the work. This is a not unusual setup in virtualized clusters when the VMs are on a virtual subnet
                
> RM should resolve hostnames/ips in include/exclude files to support matching against both hostnames and ips
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-1155
>                 URL: https://issues.apache.org/jira/browse/YARN-1155
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: yeshavora
>            Assignee: Xuan Gong
>
> RM should be able to resolve both ips and host names from include and exclude files. 

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