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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11582) org.apache.hadoop.net.TestDNS failing with NumberFormatException -IPv6 related?
Date Mon, 20 Jul 2015 15:15:05 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14633681#comment-14633681
] 

Allen Wittenauer commented on HADOOP-11582:
-------------------------------------------

IPv4 DNS servers should return IPv6 addresses as part of the lookup if the requester asks
for an IPv6 address.  You can test this yourself by looking up google.com against an IPv4
DNS server:

{code}
$ host www.google.com 8.8.8.8
Using domain server:
Name: 8.8.8.8
Address: 8.8.8.8#53
Aliases: 

www.google.com has address 74.125.239.51
www.google.com has address 74.125.239.49
www.google.com has address 74.125.239.50
www.google.com has address 74.125.239.48
www.google.com has address 74.125.239.52
www.google.com has IPv6 address 2607:f8b0:4010:801::1014
{code}

> org.apache.hadoop.net.TestDNS failing with NumberFormatException -IPv6 related?
> -------------------------------------------------------------------------------
>
>                 Key: HADOOP-11582
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11582
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: net
>    Affects Versions: 3.0.0
>         Environment: OSX yosemite
>            Reporter: Steve Loughran
>            Assignee: Varun Saxena
>              Labels: ipv6
>
> {{org.apache.hadoop.net.TestDNS}} failing {{java.lang.NumberFormatException: For input
string: ":3246:9aff:fe80:438f"}}



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