+1 for creating such branch. One of us will have to rebase it with master branch at intervals. I don't think everyone will cherry-pick their commits here. We can make it once in a month activity. Are we considering updating all dependency library version as well?
-Priyanka On Tue, Jul 12, 2016 at 2:34 AM, Munagala Ramanath <r...@datatorrent.com> wrote: > Following up on some comments, wanted to clarify what I have in mind for > this branch: > > 1. The main goal is to stay up-to-date with new releases, so if a question > of the form > "A new release of X is available, should we upgrade ?" comes up, the > answer is > *always* an *emphatic* yes; otherwise it doesn't bleed enough (:-) as > Sanjay points out. > 2. Pull requests are submitted as always; there is no requirement to > generate an additional > pull requests against this branch. It may get merged/cherry-picked > depending on who has the > time and inclination to do it. > 3. There is no expectation of dedication of any additional resources, so > people work on > it as and when time is available. ("No guarantee" means exactly that). > So there is no > question of "maintaining" this branch. > 4. This branch is not to be encumbered with legacy and/or backward > compatibility issues. > 5. This branch is not an experimental sandbox to try out new algorithms, > architectural changes > and other such changes. > > As always, I'm open to other ideas, but that is what I had in mind when I > made the suggestion. > > Ram > > > > On Mon, Jul 11, 2016 at 1:45 PM, Sanjay Pujare <san...@datatorrent.com> > wrote: > > > As the name suggests the "bleeding-edge" branch ideally should use > bleeding > > edge versions so I would like to see Java 8 used there (and Hadoop 3 when > > it does eventually come out) to make the maintenance effort worthwhile... > > > > On Mon, Jul 11, 2016 at 12:05 PM, David Yan <da...@datatorrent.com> > wrote: > > > > > I'm -0 on Java 8, but I'm +1 on the rest, and I'm especially strong +1 > > for > > > upgrading the Hadoop dependency version. > > > > > > Here are my reasons: > > > > > > - Hadoop 3 will require Java 8, but Hadoop 2.7.2 still supports Java 7 > > and > > > there will probably be some time (I'm guessing more than one year) for > > > Hadoop 3 to become GA and for major distros to support Hadoop 3. The > > > maintenance effort for having two branches, one for Java 7 and one for > > Java > > > 8 is not worth it at this time. > > > > > > - Apex currently uses Hadoop 2.2 dependencies, marked "provided". And > > > Hadoop 2.4 has been released more than two years ago, and it added a > lot > > of > > > features in the API that Apex can make use of. Most distros already > > bundle > > > Hadoop 2.6 or later. Although some old versions of Cloudera that > include > > > hadoop version earlier than 2.4 still have not reached end-of-life yet, > > the > > > number of users using those old versions is probably very small. > > > > > > David > > > > > > > > > On Mon, Jul 11, 2016 at 8:59 AM, Munagala Ramanath < > r...@datatorrent.com> > > > wrote: > > > > > > > We've had a number of issues recently related to dependencies on old > > > > versions > > > > of various packages/libraries such as Hadoop itself, Google guava, > > > > HTTPClient, > > > > mbassador, etc. > > > > > > > > How about we create a "bleeding-edge" branch in both Core and Malhar > > > which > > > > will use the latest versions of these various dependencies, upgrade > to > > > Java > > > > 8 so > > > > we can use the new Java features, etc. ? > > > > > > > > This will give us an opportunity to discover these sorts of problems > > > early > > > > and, > > > > when we are ready to pull the trigger for a major version, we have a > > > branch > > > > ready > > > > for merge with, hopefully, minimal additional effort. > > > > > > > > There will be no guarantees w.r.t. this branch so people using it use > > it > > > at > > > > their own > > > > risk. > > > > > > > > Ram > > > > > > > > > >