[
https://issues.apache.org/jira/browse/HADOOP-8156?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eli Collins updated HADOOP-8156:
--------------------------------
Target Version/s: (was: 0.23.3)
> Remove ability to specify a custom nameserver for an interface in DNS.java
> --------------------------------------------------------------------------
>
> Key: HADOOP-8156
> URL: https://issues.apache.org/jira/browse/HADOOP-8156
> Project: Hadoop Common
> Issue Type: Improvement
> Components: conf
> Reporter: Eli Collins
> Assignee: Eli Collins
> Attachments: hadoop-8156.txt
>
>
> A long time ago HADOOP-497 introduced the option to specify a specific
> nameserver to use when looking up the hostname of an interface specified in
> the config (eg by {{dfs.datanode.dns.interface}}). This feature is not in
> MR2, and I dont't think it makes sense for HDFS since HDFS stopped
> advertising DNs by hostname a long time ago (HADOOP-985). Also per
> HADOOP-8134 and HBASE-4109, I don't think this feature works, as it returns
> the PTR record verbatim instead of the hostname (eg PTR record may have a
> trailing ".", ".lan" etc that may not resolve).
> How about we remove this feature from trunk and 23? We can deprecate in
> 1.0, though I doubt anyone is using it. This is an incompatible change. DNS
> is annotated LimitedPrivate and Unstable but HBase uses it so will file need
> to file a jira there (they use this via HBASE-1279 and HBASE-1279).
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
