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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11630) Allow hadoop to bind to ipv6 conditionally
Date Tue, 24 Feb 2015 21:20:05 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14335474#comment-14335474
] 

Allen Wittenauer commented on HADOOP-11630:
-------------------------------------------

I'd rather see that work done than make it too easy too early for user's to screw this up
on real systems. Given that in trunk it is very easy to enable IPv6 in the shell code, I'm
not sure what this patch buys us until that other code shows up. I'd much rather get rid of
this code hack altogether, which would make trunk the place to do that.

> Allow hadoop to bind to ipv6 conditionally
> ------------------------------------------
>
>                 Key: HADOOP-11630
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11630
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: scripts
>    Affects Versions: 2.6.0
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>              Labels: ipv6
>         Attachments: HDFS-7834-branch-2-0.patch, HDFS-7834-trunk-0.patch
>
>
> Currently the bash scripts unconditionally add -Djava.net.preferIPv4Stack=true
> While this was needed a while ago. IPV6 on java works much better now and there should
be a way to allow it to bind dual stack if needed.



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