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https://issues.apache.org/jira/browse/YARN-4565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15089407#comment-15089407
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Karam Singh commented on YARN-4565:
-----------------------------------

GridMix V3 Trace information with GridMix run settings for test
 Trace runs 760 jobs with settings:
gridmix.client.pending.queue.depth=10, 
gridmix.job-submission.policy=REPLAY
gridmix.client.submit.threads=5, gridmix.submit.multiplier=0.0001
gridmix.job.type=SLEEPJOB, mapreduce.framework.name=yarn
gridmix.sleep.max-map-time=5000, gridmix.sleep.max-reduce-time=5000
gridmix.user.resolve.class=org.apache.hadoop.mapred.gridmix.RoundRobinUserResolver
With Users file containing 4 users for RoundRobinUserResolver

Debugging with [~wangda]

> When sizeBasedWeight enabled for FairOrderingPolicy in CapacityScheduler, 
> Sometimes lead to situation where all queue resources consumed by AMs only
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-4565
>                 URL: https://issues.apache.org/jira/browse/YARN-4565
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacity scheduler, capacityscheduler
>    Affects Versions: 2.8.0, 2.7.1
>            Reporter: Karam Singh
>
> When sizeBasedWeight enabled for FairOrderingPolicy in CapacityScheduler, 
> Sometimes lead to situation where all queue resources consumed by AMs only,
> So from users perpective it appears that all application in queue are stuck, 
> whole queue capacity is comsumed by AMs



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