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From Chris Trezzo <ctre...@gmail.com>
Subject Re: Thinking ahead to hadoop-2.6
Date Tue, 23 Sep 2014 23:25:16 GMT
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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