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https://issues.apache.org/jira/browse/MAPREDUCE-1222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12783948#action_12783948
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Hong Tang commented on MAPREDUCE-1222:
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@dick, thanks for the help. The solution is more complex than I would like to
have in solving the trivial problem this jira represents.
I suggest we go for a less efficient, but more direct and thus
easier-to-maintain solution: unescaping the dots and rely on java's IPv4 or
IPv6 parsing code.
> [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
> Affects Versions: 0.21.0, 0.22.0
> Reporter: Hong Tang
> Assignee: Hong Tang
> Fix For: 0.21.0, 0.22.0
>
> Attachments: IPv6-predicate.patch, mapreduce-1222-20091119.patch,
> mapreduce-1222-20091121.patch
>
>
> 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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