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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5079) [Umbrella] Native YARN framework layer for services and beyond
Date Fri, 13 May 2016 18:14:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-5079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15282939#comment-15282939
] 

Vinod Kumar Vavilapalli commented on YARN-5079:
-----------------------------------------------

bq. Vinod Kumar Vavilapalli, there was a discussion thread in the Slider dev list on this
topic. There is general consensus in the Apache Slider community to the proposal of absorbing
Slider components into Hadoop YARN. Here is the link to that thread - https://s.apache.org/0hoh
Thanks for this great reference thread, [~gsaha]!

It's great to know of this general positive push in the Slider community. If there's sufficient
consensus here, then we can start thinking about some of the next level issues to be tackled
- community absorption, code uptake / init branches, transition / migration story etc.

> [Umbrella] Native YARN framework layer for services and beyond
> --------------------------------------------------------------
>
>                 Key: YARN-5079
>                 URL: https://issues.apache.org/jira/browse/YARN-5079
>             Project: Hadoop YARN
>          Issue Type: New Feature
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Vinod Kumar Vavilapalli
>
> (See overview doc at YARN-4692, modifying and copy-pasting some of the relevant pieces
and sub-section 3.3.1 to track the specific sub-item.)
> (This is a companion to YARN-4793 in our effort to simplify the entire story, but focusing
on APIs)
> So far, YARN by design has restricted itself to having a very low-­level API that can
support any type of application. Frameworks like Apache Hadoop MapReduce, Apache Tez, Apache
Spark, Apache REEF, Apache Twill, Apache Helix and others ended up exposing higher level APIs
that end­-users can directly leverage to build their applications on top of YARN. On the
services side, Apache Slider has done something similar.
> With our current attention on making services first­-class and simplified, it's time
to take a fresh look at how we can make Apache Hadoop YARN support services well out of the
box. Beyond the functionality that I outlined in the previous sections in the doc on how NodeManagers
can be enhanced to help services, the biggest missing piece is the framework itself. There
is a lot of very important functionality that a services' framework can own together with
YARN in executing services end­-to­-end.
> In this JIRA I propose we look at having a native Apache Hadoop framework for running
services natively on YARN.



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