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https://issues.apache.org/jira/browse/HBASE-5587?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13230760#comment-13230760
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Eli Collins commented on HBASE-5587:
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Depends on you guys, and the Hadoop jira. I'm happy to leave in the code (which
will be dead code in Hadoop) in 23/cdh4 if that makes maintaining compatibility
much easier for you. You guys could also insulate yourselves by copying the
relevant methods into your branches if you want. I'd be curious to know if you
guys have people using this feature.
> Remove dns.interface configuration options
> -------------------------------------------
>
> Key: HBASE-5587
> URL: https://issues.apache.org/jira/browse/HBASE-5587
> Project: HBase
> Issue Type: Improvement
> Reporter: Eli Collins
>
> Are the {{hbase.*.dns.interface}} configuration options used or needed? Per
> HBASE-4109 it looks like these never really worked, at least in cases where
> the hostname with a trailing dot doesn't resolve. The reason I asked is that
> while these were introduced in Hadoop, I don't think they're actually used,
> nor am I convinced bypassing the host for DNS lookups is a good idea (leads
> to painful bugs where default Java DNS lookups differ with these lookups).
> HBase started using these via a similar feature in HBASE-1279 and HBASE-1279.
> I filed HADOOP-8156 to remove the API which HBase uses, which is obviously an
> incompatible change and would need to be worked around here if you wanted to
> keep this functionality in HBase, ie *if* that were to get checked into
> Hadoop we'd first need to get you on your own DNS class. Either way I'll
> update DNS' InterfaceAudience annotation to indicate HBase is a user.
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