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https://issues.apache.org/jira/browse/MAPREDUCE-320?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14065159#comment-14065159
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Allen Wittenauer commented on MAPREDUCE-320:
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I'm tempted to close this as won't fix. The fundamental problem is that the MR
framework (and all other Hadoop systems) need to a way to distinguish a process
as the same host on machines with multiple interfaces. This is certainly
fixable... and the various token systems we have floating around may actually
do that. But it's a tremendous amount of work (especially from a security
perspective) and I don't see much interest in doing that work.
> Map/Reduce should use IP addresses to identify nodes rather than hostnames
> --------------------------------------------------------------------------
>
> Key: MAPREDUCE-320
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-320
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
>
> We should move the Map/Reduce framework to identify hosts as IP addresses
> rather than hostnames to prevent problems with DNS.
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