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Date: Fri, 18 Nov 2011 08:37:51 +0000 (UTC)
From: "Sho Shimauchi (Commented) (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HADOOP-7806) [DNS] Support binding to
 sub-interfaces
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    [ https://issues.apache.org/jira/browse/HADOOP-7806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13152722#comment-13152722 ] 

Sho Shimauchi commented on HADOOP-7806:
---------------------------------------

nested ifs would be better, remove else clause.
                
> [DNS] Support binding to sub-interfaces
> ---------------------------------------
>
>                 Key: HADOOP-7806
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7806
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: util
>    Affects Versions: 0.24.0
>            Reporter: Harsh J
>            Assignee: Harsh J
>             Fix For: 0.24.0
>
>         Attachments: HADOOP-7806.patch
>
>
> Right now, with the {{DNS}} class, we can look up IPs of provided interface names ({{eth0}}, {{vm1}}, etc.). However, it would be useful if the I/F -> IP lookup also took a look at subinterfaces ({{eth0:1}}, etc.) and allowed binding to only a specified subinterface / virtual interface.
> This should be fairly easy to add, by matching against all available interfaces' subinterfaces via Java.

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