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From "Hong Tang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1222) [Mumak] We should not include nodes with numeric ips in cluster topology.
Date Mon, 30 Nov 2009 23:52:20 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12783948#action_12783948
] 

Hong Tang commented on MAPREDUCE-1222:
--------------------------------------

@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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