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https://issues.apache.org/jira/browse/HADOOP-6364?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12775045#action_12775045
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Allen Wittenauer commented on HADOOP-6364:
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A quick grep through the source says this is only supported in the TaskTracker
and DataNode.
> add a 'hostname' or 'identity' parameter
> ----------------------------------------
>
> Key: HADOOP-6364
> URL: https://issues.apache.org/jira/browse/HADOOP-6364
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Allen Wittenauer
>
> There was a bit of talk about HDFS-34 last night at Apachecon. One of the
> points brought up was the difficulty in assuming that the 'hostname' was
> externally available. Perhaps what needs to happen instead is to follow what
> httpd and a few other apps do. That is provide a way for the service to know
> what hostname to advertise itself as and use in all communications. This
> could also help solve the multi-nic problems (HADOOP-6210) faced when using
> hadoop in a HA environment.
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