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From Sean Busbey <bus...@apache.org>
Subject Re: [DISCUSS] Bump hadoop versions
Date Sat, 04 Jan 2020 02:52:26 GMT
I personally like having Hadoop 2 support still, but I agree the cadence
out of Hadoop has been problematic.

I would prefer we not change the state of Hadoop support in the master
branch until we have a release plan of some kind for HBase 3. I'd rather
that be sooner rather than later.

On Fri, Jan 3, 2020, 18:08 张铎(Duo Zhang) <palomino219@gmail.com> wrote:

> Support Hadoop 2.x in 3.0.0 means we need to carry it over the whole 3.x
> release lines, which seems to be a problem since the Hadoop community do
> not want to new 2.x release line any more...
>
> Nick Dimiduk <ndimiduk@gmail.com>于2020年1月4日 周六06:55写道:
>
> > On Wed, Dec 25, 2019 at 5:38 PM 张铎(Duo Zhang) <palomino219@gmail.com>
> > wrote:
> >
> > > We will only remove the hadoop 2.x support from hbase 3.x, which does
> not
> > > have a formal release plan yet, for 2.x we will still support hadoop
> 2.x.
> > >
> >
> > Indeed there is no formal release plan for HBase-3.0, but I hope it's
> > sooner than 2+ years away! What's the motivation for dropping Hadoop2
> > support?
> >
> > Wei-Chiu Chuang <weichiu@apache.org> 于2019年12月26日周四 上午8:57写道:
> > >
> > > > With my Hadoop hat's on, we have not yet officially declared Hadoop
> 2.8
> > > > EOL. I think the 2.8 download missing from the web page is just a
> > > mistake.
> > > >
> > > > That being said, some of the biggest Hadoop users (LinkedIn, Yahoo,
> > > > Microsoft) that I am aware of are moving up from 2.7/2.8 to 2.10, and
> > > that
> > > > 2.8.5 (the last version in the 2.8 line) was released in Sep 2018,
> more
> > > > than a year ago. It doesn't look like the community has the desire to
> > > > continue the 2.8 line.
> > > >
> > > > I think it is a little extreme to remove hadoop2 profile, given that
> > > Hadoop
> > > > 2.9 and 2.10 are still active and I expect Hadoop 2 to stay around
> for
> > at
> > > > least 2 years out.
> > > >
> > > > On Thu, Dec 26, 2019 at 8:41 AM 张铎(Duo Zhang) <palomino219@gmail.com
> >
> > > > wrote:
> > > >
> > > > > Hadoop 2.8.x has been removed from the download page of hadoop so
I
> > > think
> > > > > it is time to bump the hadoop dependency to 2.9.x, on master an
> > > branch-2.
> > > > >
> > > > > And the hadoop community is going to make 2.10.x the last minor
> > release
> > > > > line for 2.x
> > > > >
> > > > >
> > > > >
> > > >
> > >
> >
> https://lists.apache.org/thread.html/cab84265d632b90d66dcd1ad957a7439a2c76a987c7e62feafb4812e%40%3Ccommon-dev.hadoop.apache.org%3E
> > > > >
> > > > >
> > > > > I think this is a sign that the community is moving forward to 3.x.
> > So
> > > I
> > > > > propose we make the master branch hadoop3 only, This requires
> > changing
> > > > the
> > > > > pom a bit to active hadoop3 profile by default and remove the
> hadoop2
> > > > > profile.
> > > > >
> > > > > Thoughts? Thanks.
> > > > >
> > > >
> > >
> >
>

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