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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11890) Uber-JIRA: Hadoop should support IPv6
Date Mon, 22 Aug 2016 15:37:21 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15431022#comment-15431022
] 

Allen Wittenauer commented on HADOOP-11890:
-------------------------------------------

Minor nits:

{code}
 if [[ "${HADOOP_ALLOW_IPV6}" -ne "yes" ]]; then
   export HADOOP_OPTS=${HADOOP_OPTS:-"-Djava.net.preferIPv4Stack=true"}
 else
   export HADOOP_OPTS=${HADOOP_OPTS:-""}
 fi
{code}

* I'd prefer if this wasn't a negative test.
* This should really use true/false instead of yes/no to be consistent with the rest of the
code.
* Where is HADOOP_ALLOW_IPV6 documented?

> Uber-JIRA: Hadoop should support IPv6
> -------------------------------------
>
>                 Key: HADOOP-11890
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11890
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: net
>            Reporter: Nate Edel
>            Assignee: Nate Edel
>              Labels: ipv6
>
> Hadoop currently treats IPv6 as unsupported.  Track related smaller issues to support
IPv6.
> (Current case here is mainly HBase on HDFS, so any suggestions about other test cases/workload
are really appreciated.)



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