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From Arun Suresh <asur...@apache.org>
Subject Re: [DISCUSS] Merge yarn-native-services branch into trunk
Date Tue, 05 Sep 2017 20:37:26 GMT
Thanks for all the work on this folks.
I know the VOTE thread has started for this.

But I did have a couple of questions:
* Is there a branch-2 merge planned for this ?
* I understand YARN-7126 has some introductory documentation, But I think
we need to flesh it up a bit more before release, I would also like to see
steps to deploy a sample service.


On Thu, Aug 31, 2017 at 12:40 AM, Jian He <jhe@hortonworks.com> wrote:

> Update:
> I’ve chatted with Andrew offline, we’ll proceed with merging
> yarn-native-services into trunk for beta.
> We’ll advertise this feature as “alpha"
> Currently, we have completed all the jiras for this merge - I’ve also
> moved out the subtasks that are not blocking this merge.
> I’ve created YARN-7127 to run the entire patch against trunk, once that
> goes green, I plan to start a formal vote.
> Thanks,
> Jian
> On Aug 18, 2017, at 2:48 PM, Andrew Wang <andrew.wang@cloudera.com<mailto:
> andrew.wang@cloudera.com>> wrote:
> Hi Jian, thanks for the reply,
> On Thu, Aug 17, 2017 at 1:03 PM, Jian He <jhe@hortonworks.com<mailto:jh
> e@hortonworks.com>> wrote:
> Thanks Andrew for the comments. Answers below:
> - There are no new APIs added in YARN/Hadoop core. In fact, all the new
> code are running outside of existing system and they are optional and
> require users to explicitly opt in. The new system’s own rest API is not
> stable and will be evolving.
> Great! That adds a lot more confidence that this is safe to merge.
> Are these new APIs listed in user documentation, and described as unstable?
> - We have been running/testing a version of the entire system internally
> for quite a while.
> Do you mind elaborating on the level of testing? Number of nodes, types of
> applications, production or test workload, etc. It'd help us build
> confidence.
> - I’d like to see this in hadoop3-beta1. Of course, we’ll take
> responsibility of moving fast and not block the potential timeline.
> Few more questions:
> How should we advertise this feature in the release? Since the APIs are
> unstable, I'd propose calling it "alpha" in the release notes, like we do
> the TSv2.
> Could you move out subtasks from YARN-5079 that are not blocking the
> merge? This would make it easier to understand what's remaining.
> Thanks,
> Andrew

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