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From Varun Saxena <vsaxena.va...@gmail.com>
Subject Re: [VOTE] merge feature branch YARN-2928
Date Sat, 02 Jul 2016 17:14:56 GMT
+1(binding)

On Sat, Jul 2, 2016 at 10:35 PM, Tsuyoshi Ozawa <ozawa@apache.org> wrote:

> +1(binding)
>
> On Sat, Jul 2, 2016 at 9:41 AM, Joep Rottinghuis <jrottinghuis@gmail.com>
> wrote:
> > Perhaps superfluous as a contributor to this branch, but for the record:
> > +1 (non-binding)
> >
> > Cheers,
> >
> > Joep
> >
> >> On Jul 1, 2016, at 9:00 AM, Sangjin Lee <sjlee@apache.org> wrote:
> >>
> >> Hi folks,
> >>
> >> Per earlier discussion [1], I'd like to start a formal vote to merge
> >> feature branch YARN-2928 [2] (Timeline Service v.2) to trunk. The vote
> will
> >> run for 7 days, and will end July 8 9:00 AM PDT.
> >>
> >> We have been developing the feature in a feature branch (YARN-2928 [3])
> for
> >> a while, and we are reasonably confident that the state of the feature
> >> meets the criteria to be merged onto trunk and we'd love folks to get
> their
> >> hands on it in a test capacity and provide valuable feedback so that we
> can
> >> make it production-ready.
> >>
> >> In a nutshell, Timeline Service v.2 delivers significant scalability and
> >> usability improvements based on a new architecture. You can browse the
> >> requirements/design doc, the storage schema doc, the new entity/data
> model,
> >> the YARN documentation, and also discussions on subsequent milestones on
> >> YARN-2928 [2].
> >>
> >> What we would like to merge to trunk is termed "alpha 1" (milestone 1).
> The
> >> feature has a complete end-to-end read/write flow, and you should be
> able
> >> to start setting it up and testing it. At a high level, the following
> are
> >> the key features that have been implemented:
> >>
> >> - distributed writers (collectors) as NM aux services
> >> - HBase storage
> >> - new entity model that includes flows
> >> - setting the flow context via YARN app tags
> >> - real time metrics aggregation to the application level and the flow
> level
> >> - rich REST API that supports filters, complex conditionals, limits,
> >> content selection, etc.
> >> - YARN generic events and system metrics
> >> - integration with Distributed Shell and MapReduce
> >>
> >> There are a total of 139 subtasks that were completed as part of this
> >> effort.
> >>
> >> We paid close attention to ensure that once disabled Timeline Service
> v.2
> >> does not impact existing functionality when disabled (by default).
> >>
> >> Special thanks go to all the folks who worked real hard on this
> feature: Li
> >> Lu, Junping Du, Vinod Kumar Vavilapalli, Naga G. R., Varun Saxena,
> Vrushali
> >> C, and Joep Rottinghuis!
> >>
> >> Regards,
> >> Sangjin
> >>
> >> [1]
> >>
> https://lists.apache.org/thread.html/314288f399f5ef96b2f4f1fc055ac5d440310c8d98ace9a0045e8729@%3Cyarn-dev.hadoop.apache.org%3E
> >> [2] https://issues.apache.org/jira/browse/YARN-2928
> >> [3] https://github.com/apache/hadoop/commits/YARN-2928
> >
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> >
>
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