Siyao and I are discussing privately about releasing Hadoop 3.4.4 before 3.6.0. Reasoning being Ozone hasn't yet fully moved to Java 17, and we want to have an IPv6-capable Hadoop Common to unblock Ozone.
My goal is to ship a release where the Hadoop Commons library supports ipv6 first. HDFS, YARN, MR will come later. Given where we are and our bandwidth, the said Hadoop 3.4.4 release work will likely kick off around December time frame. On Thu, Aug 20, 2026 at 10:24 AM Aaron Fabbri <[email protected]> wrote: > I'm also +1 doing this on trunk with the request that we try to break the > work up into small chunks. > > (In case it helps: Sometimes I'll develop on a private feature branch just > to determine what the "small chunks" are, then re-do the work with small > incremental PRs on trunk) > > On Wed, Aug 19, 2026 at 8:15 PM Cheng Pan <[email protected]> wrote: > > > +1 for developing on trunk directly. > > > > > Hadoop 3.6.0 release towards the end of the year > > > > Hadoop 3.2.0 released in Jan, 2019 > > Hadoop 3.3.0 released in Jul, 2020 > > Hadoop 3.4.0 released in Mar, 2024 > > Hadoop 3.5.0 released in Mar, 2026 > > > > This expectation may be overly optimistic, but I’m big +1 for more > > frequently releases. > > > > One question, is there any docs for IPv6 testing infra setup? > > And how can we setup IPv6-only and dual-stack CI pipelines / local dev > env > > (via docker)? > > > > Thanks, > > Cheng Pan > > > > > > > > > On Aug 20, 2026, at 01:50, Wei-Chiu Chuang <[email protected]> wrote: > > > > > > Note: I expect the scope is limited to Hadoop Common and HDFS. The > cloud > > > connectors are not my area of expertise and I'd like to leave that to > > > someone more experienced. > > > > > > On Tue, Aug 18, 2026 at 10:18 PM Shilun Fan <[email protected]> > > wrote: > > > > > >> +1. I support developing the IPv6 changes directly on trunk. A > separate > > >> feature branch seems unnecessary, especially if the work is split into > > >> small, reviewable patches. Targeting Hadoop 3.6.0 toward the end of > the > > >> year sounds reasonable to me. > > >> > > >> Best, > > >> Shilun Fan > > >> > > >> On 2026/08/19 05:09:57 Wei-Chiu Chuang wrote: > > >>> Would anyone object to developing this in the trunk branch? Given > that > > >>> there's unlikely any minor releases before the completion of this > > >> project, > > >>> keep the IPv6 development in a feature branch seems like overkill. > > >>> > > >>> Let's shoot for Hadoop 3.6.0 release towards the end of the year? > > >>> > > >>> On Tue, Aug 18, 2026 at 2:26 PM Siyao Meng <[email protected]> wrote: > > >>> > > >>>> 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 > > >>>> > > >>> > > >> > > >> --------------------------------------------------------------------- > > >> To unsubscribe, e-mail: [email protected] > > >> For additional commands, e-mail: [email protected] > > >> > > >> > > > > >
