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From "Nemanja Matkovic (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12491) Hadoop-common - Avoid unsafe split and append on fields that might be IPv6 literals
Date Tue, 20 Oct 2015 14:23:27 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14965165#comment-14965165
] 

Nemanja Matkovic commented on HADOOP-12491:
-------------------------------------------

Thanks for questions, these are the answers:
  2. Yup, my change only alters comment that says "we don't support IPv6", but keeps IPv4
as default. [~eclark] will tackle how to keep running IPv6 configuration in HADOOP-11630
  3. New DNS tests will work in offline mode as I'm testing only parsing on IPv6 address into
nibbles, not actually querying DNS server for it (possible test miss, but seems to me that
querying DNS would introduce more flakiness that benefit?)
  4. I did a test run on dual stack machine where all tests have "preferIPv4Stack=true" (AFAIK
that is the same as IPv4 only machine, it is going only through IPv4 codepaths) - nothing
happens, tests run and pass.

> Hadoop-common - Avoid unsafe split and append on fields that might be IPv6 literals
> -----------------------------------------------------------------------------------
>
>                 Key: HADOOP-12491
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12491
>             Project: Hadoop Common
>          Issue Type: Sub-task
>    Affects Versions: HADOOP-11890
>            Reporter: Nemanja Matkovic
>            Assignee: Nemanja Matkovic
>              Labels: ipv6
>             Fix For: HADOOP-11890
>
>         Attachments: HADOOP-12491-HADOOP-11890.1.patch, HADOOP-12491-HADOOP-11890.2.patch
>
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> Hadoop-common portion of HADOOP-12122



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