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From Colin McCabe <cmcc...@alumni.cmu.edu>
Subject Re: Thinking ahead to hadoop-2.7
Date Mon, 08 Dec 2014 19:48:59 GMT
On Fri, Dec 5, 2014 at 11:15 AM, Karthik Kambatla <kasha@cloudera.com> wrote:
> It would be nice to cut the branch for the next "feature" release (not just
> Java 7) in the first week of January, so we can get the RC out by the end
> of the month?
>
> Yesterday, this came up in an offline discussion on ATS. Given people can
> run 2.6 on Java 7, is there merit to doing 2.7 with the exact same bits
> targeting Java 7? I am okay with going through with it, as long as it
> doesn't delay the next feature release.
>
> Thoughts?

That's a good point.  I think it's important to point out that most of
our users are already on JDK7.  We shouldn't think of this decision as
adding support for something new, we should think about it as taking
something away (JDK6 support).  I think it's good that we are finally
moving away from supporting JDK6, but I'm not completely sure that we
need to devote a whole release to that.  Are there a lot of open JDK7
issues that would require a release to straighten out?

best,
Colin


>
> On Wed, Dec 3, 2014 at 8:59 AM, Sangjin Lee <sjlee@apache.org> wrote:
>
>> Late January sounds fine to me. I think we should be able to wrap it up
>> much earlier than that (hopefully).
>>
>> Thanks,
>> Sangjin
>>
>> On Tue, Dec 2, 2014 at 5:19 PM, Arun C Murthy <acm@hortonworks.com> wrote:
>>
>> > Sangjin/Karthik,
>> >
>> >  How about planning on hadoop-2.8 by late Jan? Thoughts?
>> >
>> > thanks,
>> > Arun
>> >
>> > On Dec 2, 2014, at 11:09 AM, Sangjin Lee <sjlee0@gmail.com> wrote:
>> >
>> > > If 2.7 is being positioned as the JDK7-only release, then it would be
>> > good
>> > > to know how 2.8 lines up in terms of timing. Our interest is landing
>> the
>> > > shared cache feature (YARN-1492)... Thanks.
>> > >
>> > > Sangjin
>> > >
>> > > On Mon, Dec 1, 2014 at 2:55 PM, Karthik Kambatla <kasha@cloudera.com>
>> > wrote:
>> > >
>> > >> Thanks for starting this thread, Arun.
>> > >>
>> > >> Your proposal seems reasonable to me. I suppose we would like new
>> > features
>> > >> and improvements to go into 2.8 then? If yes, what time frame are we
>> > >> looking at for 2.8? Looking at YARN, it would be nice to get a release
>> > with
>> > >> shared-cache and a stable version of reservation work. I believe they
>> > are
>> > >> well under way and should be ready in a few weeks.
>> > >>
>> > >> Regarding 2.7 release specifics, do you plan to create a branch off
of
>> > >> current branch-2.6 and update all issues marked fixed for 2.7 to be
>> > fixed
>> > >> for 2.8?
>> > >>
>> > >> Thanks
>> > >> Karthik
>> > >>
>> > >> On Mon, Dec 1, 2014 at 2:42 PM, Arun Murthy <acm@hortonworks.com>
>> > wrote:
>> > >>
>> > >>> Folks,
>> > >>>
>> > >>> With hadoop-2.6 out it's time to think ahead.
>> > >>>
>> > >>> As we've discussed in the past, 2.6 was the last release which
>> supports
>> > >>> JDK6.
>> > >>>
>> > >>> I'm thinking it's best to try get 2.7 out in a few weeks (maybe
by
>> the
>> > >>> holidays) with just the switch to JDK7 (HADOOP-10530) and possibly
>> > >>> support for JDK-1.8 (as a runtime) via HADOOP-11090.
>> > >>>
>> > >>> This way we can start with the stable base of 2.6 and switch over
to
>> > >>> JDK7 to allow our downstream projects to use either for a short
time
>> > >>> (hadoop-2.6 or hadoop-2.7).
>> > >>>
>> > >>> I'll update the Roadmap wiki accordingly.
>> > >>>
>> > >>> Thoughts?
>> > >>>
>> > >>> thanks,
>> > >>> Arun
>> > >>>
>> > >>> --
>> > >>> CONFIDENTIALITY NOTICE
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>> > >>> privileged and exempt from disclosure under applicable law. If
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>> > reader
>> > >>> of this message is not the intended recipient, you are hereby
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>> > >>
>> >
>> > --
>> > Arun C. Murthy
>> > Hortonworks Inc.
>> > http://hortonworks.com/hdp/
>> >
>> >
>> >
>> > --
>> > CONFIDENTIALITY NOTICE
>> > NOTICE: This message is intended for the use of the individual or entity
>> to
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>>
>
>
>
> --
> -- Karthik Kambatla, Software Engineer, Cloudera
> --------------------------------------------
> Q: Why is this email five sentences or less?
> A: http://five.sentenc.es

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