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From Karthik Kambatla <ka...@cloudera.com>
Subject Re: Thinking ahead to hadoop-2.6
Date Tue, 23 Sep 2014 23:31:18 GMT
Looking at the patches, we might be able to get most of YARN-1492 in by the
end of next week. There would be a couple of security items still
remaining, but we can may be call the feature alpha-ready without them.

On Tue, Sep 23, 2014 at 4:25 PM, Chris Trezzo <ctrezzo@gmail.com> wrote:

> I would like to see the shared cache (YARN-1492) make it in as well. We are
> going through the final review process (with Karthik and Vinod) and should
> be fairly close to complete. This is another feature that has been under
> development for a while.
>
> Thanks,
> Chris
>
> On Tue, Sep 23, 2014 at 4:00 PM, Suresh Srinivas <suresh@hortonworks.com>
> wrote:
>
> > I actually would like to see both archival storage and single replica
> > memory writes to be in 2.6 release. Archival storage is in the final
> stages
> > of getting ready for branch-2 merge as Nicholas has already indicated on
> > the dev mailing list. Hopefully HDFS-6581 gets ready sooner. Both of
> these
> > features are being in development for sometime.
> >
> > On Tue, Sep 23, 2014 at 3:27 PM, Andrew Wang <andrew.wang@cloudera.com>
> > wrote:
> >
> > > Hey Arun,
> > >
> > > Maybe we could do a quick run through of the Roadmap wiki and
> > add/retarget
> > > things accordingly?
> > >
> > > I think the KMS and transparent encryption are ready to go. We've got a
> > > very few further bug fixes pending, but that's it.
> > >
> > > Two HDFS things that I think probably won't make the end of the week
> are
> > > archival storage (HDFS-6584) and single replica memory writes
> > (HDFS-6581),
> > > which I believe are under the HSM banner. HDFS-6484 was just merged to
> > > trunk and I think needs a little more work before it goes into
> branch-2.
> > > HDFS-6581 hasn't even been merged to trunk yet, so seems a bit further
> > off
> > > yet.
> > >
> > > Just my 2c as I did not work directly on these features. I just
> generally
> > > shy away from shipping bits quite this fresh.
> > >
> > > Thanks,
> > > Andrew
> > >
> > > On Tue, Sep 23, 2014 at 3:03 PM, Arun Murthy <acm@hortonworks.com>
> > wrote:
> > >
> > > > Looks like most of the content is in and hadoop-2.6 is shaping up
> > nicely.
> > > >
> > > > I'll create branch-2.6 by end of the week and we can go from there to
> > > > stabilize it - hopefully in the next few weeks.
> > > >
> > > > Thoughts?
> > > >
> > > > thanks,
> > > > Arun
> > > >
> > > > On Tue, Aug 12, 2014 at 1:34 PM, Arun C Murthy <acm@hortonworks.com>
> > > > wrote:
> > > >
> > > > > Folks,
> > > > >
> > > > >  With hadoop-2.5 nearly done, it's time to start thinking ahead to
> > > > > hadoop-2.6.
> > > > >
> > > > >  Currently, here is the Roadmap per the wiki:
> > > > >
> > > > >         • HADOOP
> > > > >                 • Credential provider HADOOP-10607
> > > > >         • HDFS
> > > > >                 • Heterogeneous storage (Phase 2) - Support APIs
> for
> > > > using
> > > > > storage tiers by the applications HDFS-5682
> > > > >                 • Memory as storage tier HDFS-5851
> > > > >         • YARN
> > > > >                 • Dynamic Resource Configuration YARN-291
> > > > >                 • NodeManager Restart YARN-1336
> > > > >                 • ResourceManager HA Phase 2 YARN-556
> > > > >                 • Support for admin-specified labels in YARN
> YARN-796
> > > > >                 • Support for automatic, shared cache for YARN
> > > > application
> > > > > artifacts YARN-1492
> > > > >                 • Support NodeGroup layer topology on YARN YARN-18
> > > > >                 • Support for Docker containers in YARN YARN-1964
> > > > >                 • YARN service registry YARN-913
> > > > >
> > > > >  My suspicion is, as is normal, some will make the cut and some
> > won't.
> > > > > Please do add/subtract from the list as appropriate. Ideally, it
> > would
> > > be
> > > > > good to ship hadoop-2.6 in a 6-8 weeks (say, October) to keep up
a
> > > > cadence.
> > > > >
> > > > >  More importantly, as we discussed previously, we'd like hadoop-2.6
> > to
> > > be
> > > > > the *last* Apache Hadoop 2.x release which support JDK6. I'll
> start a
> > > > > discussion with other communities (HBase, Pig, Hive, Oozie etc.)
> and
> > > see
> > > > > how they feel about this.
> > > > >
> > > > > thanks,
> > > > > Arun
> > > > >
> > > > >
> > > >
> > > >
> > > > --
> > > >
> > > > --
> > > > Arun C. Murthy
> > > > Hortonworks Inc.
> > > > http://hortonworks.com/
> > > >
> > > > --
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