[Mumak] We should not include nodes with numeric ips in cluster topology.
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                 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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