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From Arun Suresh <asur...@apache.org>
Subject Re: [VOTE] Merge feature branch YARN-4752. FairScheduler preemption overhaul
Date Thu, 17 Nov 2016 16:21:49 GMT
+1


On Thu, Nov 17, 2016 at 6:21 AM, Daniel Templeton <daniel@cloudera.com>
wrote:

> +1 on the merge.  Nice work, Karthik!
>
> Daniel
>
>
> On 11/16/16 9:17 PM, Karthik Kambatla wrote:
>
>> Hi folks,
>>
>> Based on the positive feedback on the DISCUSS thread [1], I would like to
>> start a formal vote to merge feature branch YARN-4752 to trunk. The
>> cumulative patch is posted to YARN-4752, and squashed into one commit here
>> [2].
>>
>> The changes include:
>>
>>     1. Preemption considers individual ResourceRequests to satisfy.
>>     (YARN-5605)
>>     2. Preemption now works within a leaf queue and across sibling leaf
>>     queues. (YARN-5605)
>>     3. Comprehensive unit tests for app starvation and preemption -
>> minshare
>>     and fairshare. (YARN-5783 and YARN-5819)
>>     4. Follow up JIRAs for further improvements, also annotated in the
>> code.
>>     (YARN-5885). Will continue working on these improvements post merge.
>>
>> These changes are strictly internal to the scheduler, mostly
>> FairScheduler.
>> The branch followed RTC.
>>
>> Thanks to Arun for the initial design recommendations, Daniel for his
>> diligent reviews of sub-tasks, Arun and Sangjin for a high-level review of
>> the branch in its entirety.
>>
>> The vote will run for 7 days, and will end on Nov 23.
>>
>> Thanks
>> Karthik
>>
>> [1]
>> http://mail-archives.apache.org/mod_mbox/hadoop-yarn-dev/201
>> 611.mbox/%3CCALwhT97kAO6zuUjXTsmHgw_j-q-M9t9Gm9Vf11aogD%2B%
>> 2Bqgp2jQ%40mail.gmail.com%3E
>> [2]
>> https://github.com/apache/hadoop/commit/386f3a2af749bc96bdca
>> 1dc2302a3589773091dc
>>
>>
>
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