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) <palomino...@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 <ndimi...@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) <palomino...@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 <weic...@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) <palomino...@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. > > > > > > > > > > > > > > >
