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Hive, mail # dev - [DISCUSS] HCatalog becoming a subproject of Hive


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Re: [DISCUSS] HCatalog becoming a subproject of Hive
Carl Steinbach 2012-12-19, 19:33
Alan's proposal sounds like a good idea to me.

+1

On Dec 18, 2012 5:36 PM, "Travis Crawford" <[EMAIL PROTECTED]> wrote:

> Alan, I think your proposal sounds great.
>
> --travis
>
> On Tue, Dec 18, 2012 at 1:13 PM, Alan Gates <[EMAIL PROTECTED]> wrote:
> > Carl, speaking just for myself and not as a representative of the HCat
> PPMC at this point, I am coming to agree with you that HCat integrating
> with Hive fully makes more sense.
> >
> > However, this makes the committer question even thornier.  Travis and
> Namit, I think the shepherd proposal needs to lay out a clear and time
> bounded path to committership for HCat committers.  Having HCat committers
> as second class Hive citizens for the long run will not be healthy.  I
> propose the following as a starting point for discussion:
> >
> > All active HCat committers (those who have contributed or committed a
> patch in the last 6 months) will be made committers in the HCat portion
> only of Hive.  In addition those committers will be assigned a particular
> shepherd who is a current Hive committer and who will be responsible for
> mentoring them towards full Hive committership.  As a part of this
> mentorship the HCat committer will review patches of other contributors,
> contribute patches to Hive (both inside and outside of HCatalog), respond
> to user issues on the mailing lists, etc.  It is intended that as a result
> of this mentorship program HCat committers can become full Hive committers
> in 6-9 months.  No new HCat only committers will be elected in Hive after
> this.  All Hive committers will automatically also have commit rights on
> HCatalog.
> >
> > Alan.
> >
> > On Dec 14, 2012, at 10:05 AM, Carl Steinbach wrote:
> >
> >> On a functional level I don't think there is going to be much of a
> >> difference between the subproject option proposed by Travis and the
> other
> >> option where HCatalog becomes a TLP. In both cases HCatalog and Hive
> will
> >> have separate committers, separate code repositories, separate release
> >> cycles, and separate project roadmaps. Aside from ASF bureaucracy, I
> think
> >> the only major difference between the two options is that the subproject
> >> route will give the rest of the community the false impression that the
> two
> >> projects have coordinated roadmaps and a process to prevent overlapping
> >> functionality from appearing in both projects. Consequently, If these
> are
> >> the only two options then I would prefer that HCatalog become a TLP.
> >>
> >> On the other hand, I also agree with many of the sentiments that have
> >> already been expressed in this thread, namely that the two projects are
> >> closely related and that it would benefit the community at large if the
> two
> >> projects could be brought closer together. Up to this point the major
> >> source of pain for the HCatalog team has been the frequent necessity of
> >> making changes on both the Hive and HCatalog sides when implementing new
> >> features in HCatalog. This situation is compounded by the ASF
> requirement
> >> that release artifacts may not depend on snapshot artifacts from other
> ASF
> >> projects. Furthermore, if Hive adds a dependency on HCatalog then it
> will
> >> be subject to these same problems (in addition to the gross circular
> >> dependency!).
> >>
> >> I think the best way to avoid these problems is for HCatalog to become a
> >> Hive submodule. In this scenario HCatalog would exist as a subdirectory
> in
> >> the Hive repository and would be distributed as a Hive artifact in
> future
> >> Hive releases. In addition to solving the problems I mentioned earlier,
> I
> >> think this would also help to assuage the concerns of many Hive
> committers
> >> who don't want to see the MetaStore split out into a separate project.
> >>
> >> Thanks.
> >>
> >> Carl
> >>
> >> On Thu, Dec 13, 2012 at 7:59 PM, Namit Jain <[EMAIL PROTECTED]> wrote:
> >>
> >>> I am fine with this. Any hive committers who wants to volunteer to be
> >