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https://issues.apache.org/jira/browse/MAPREDUCE-1222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12780002#action_12780002
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Hong Tang commented on MAPREDUCE-1222:
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BTW, we should still maintain the mapping between static ips to
rack-switch-ips, and feed mapping into the static dns-to-swtich mapping.
> [Mumak] We should not include nodes with numeric ips in cluster topology.
> -------------------------------------------------------------------------
>
> Key: MAPREDUCE-1222
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1222
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/mumak
> Reporter: Hong Tang
>
> Rumen infers cluster topology by parsing input split locations from job
> history logs. Due to HDFS-778, a cluster node may appear both as a numeric ip
> or as a host name in job history logs. We should exclude nodes appeared as
> numeric ips in cluster toplogy when we run mumak until a solution is found so
> that numeric ips would never appear in input split locations.
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