Hi Hadoop community, We would like to revive IPv6 support work in Hadoop. The immediate goal is to address gaps in hadoop-common, hadoop-auth and hadoop-hdfs-client, so that IPv6 support in some downstream projects (such as Ozone) can be unblocked, which we estimated would take ~6 commits in hadoop.
We plan to revisit the earlier work and turn the applicable parts into small, reviewable changes. The main areas would include address parsing and formatting, networking, utilities, and test coverage for IPv4, dual-stack, and IPv6-only environments. Feature branches HADOOP-11890 <https://github.com/apache/hadoop/compare/HADOOP-11890> and HADOOP-17800 <https://github.com/apache/hadoop/compare/HADOOP-17800> look too outdated to work on or to be merged to trunk. Therefore, we will not work on either feature branch. But we might harvest useful bits from either and put that on trunk. After the relevant changes are merged and validated, downstream projects will also need a Hadoop release that includes them. We would discuss and plan for that release after the changes are merged. Feedback on the proposed scope and approach would be appreciated. Please also let us know about any related work we should coordinate with, or if you would like to contribute or review patches. ref: https://issues.apache.org/jira/browse/HADOOP-11890 Thanks, Siyao Hadoop committer, Ozone PMC member and committer On behalf of Ozone PMC
