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https://issues.apache.org/jira/browse/CHUKWA-412?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12775103#action_12775103
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Jerome Boulon commented on CHUKWA-412:
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>From Wikipedia:
IPv6 addresses are 128 bits in length and are normally written with hexadecimal
digits and colon separators like 2001:db8:85a3::8a2e:370:7334, as opposed to
the dot-decimal notation of the 32 bit IPv4 addresses. IPv6 addresses are
typically composed of two logical parts: a 64-bit (sub-)network prefix, and a
64-bit host part.
IPv4-mapped addresses
Dual stack IPv6/IPv4 implementations typically support a special class of
addresses, the IPv4-mapped addresses. This address type has its first 80 bits
set to zero and the next 16 set to one while its last 32 bits represent an IPv4
address. These addresses are commonly represented with their last 32 bits
written in the customary dot-decimal notation of IPv4; for example,
::ffff:192.0.2.128 is the IPv4-mapped IPv6 address for IPv4 address 192.0.2.128.
> check for IPv6 compatibility
> ----------------------------
>
> Key: CHUKWA-412
> URL: https://issues.apache.org/jira/browse/CHUKWA-412
> Project: Hadoop Chukwa
> Issue Type: Task
> Reporter: Ari Rabkin
> Priority: Minor
>
> We should test on an IPv6-only cluster and verify that nothing breaks. I'm
> worried about demux parsers in particular, but there may be other issues
> elsewhere.
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