Mostly its the use of hadoop metrics2 that has to change, as they change the backing methods. If you are interested, take the hbase compatibility layer <https://github.com/apache/hbase/tree/master/hbase-hadoop-compat/> to see most of where HBase shims things.
------------------- Jesse Yates @jesse_yates jyates.github.com On Thu, Sep 25, 2014 at 2:17 PM, Flavio Pompermaier <pomperma...@okkam.it> wrote: > Any help here? :( > On Sep 24, 2014 8:29 AM, "Flavio Pompermaier" <pomperma...@okkam.it> > wrote: > >> Just a curiosity..what is the difference between hbase on hadoop1 or >> hadoop2 from a functional point of view? >> Does HBase on hadoop2 (Hoya?) rely on YARN features? >> >> On Tue, Sep 23, 2014 at 8:15 PM, James Taylor <jamestay...@apache.org> >> wrote: >> >>> We'll definitely remove hadoop1 support from 4.x, as it's causing pom >>> issues. We can't support both hadoop1 and hadoop2 and make hadoop2 the >>> default (see prior discussions - basically due to how other projects >>> poms are authored). >>> >>> Sounds like a few folks are still relying on hadoop1 for 3.x, so I >>> guess we can leave support there a while longer. >>> >>> Thanks, >>> James >>> >>> On Tue, Sep 23, 2014 at 10:54 AM, lars hofhansl <la...@apache.org> >>> wrote: >>> > At the very least we could make hadoop2 the default target in 4.x. >>> > Seems fair to remove all the cruft from the 4 branch, too. >>> > >>> > There's still a fair amount of usage of HBase 0.94 on top of Hadoop 1. >>> > So maybe keep it alive in 3.0? 3.0 can be retired when HBase 0.94 is >>> retired (although I have no plans for 0.94 retirement, yet). >>> > >>> > -- Lars >>> > >>> > >>> > ----- Original Message ----- >>> > From: James Taylor <jamestay...@apache.org> >>> > To: "d...@phoenix.apache.org" <d...@phoenix.apache.org>; user < >>> user@phoenix.apache.org> >>> > Cc: >>> > Sent: Monday, September 22, 2014 10:19 PM >>> > Subject: anyone relying on hadoop1 still? >>> > >>> > Hello, >>> > We've been planning on dropping hadoop1 support for our 4.x releases >>> > for a while now and it looks like it'll happen in 4.2. It'd be nice if >>> > we could do the same for our 3.x releases, as the more similar the two >>> > branches are, the less time it takes to keep them in sync. >>> > >>> > Is anyone out there still relying on hadoop1 support for future 3.x >>> releases? >>> > >>> > Thanks, >>> > James >>> > >>> >> >>
