Wei Shao updated YARN-3808:
    Attachment: ProposalOfTimeExtendedFairSchedulingForYARN-V1.03.pdf

> Proposal of Time Extended Fair Scheduling for YARN
> --------------------------------------------------
>                 Key: YARN-3808
>                 URL: https://issues.apache.org/jira/browse/YARN-3808
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: fairscheduler, scheduler
>            Reporter: Wei Shao
>         Attachments: ProposalOfTimeBasedFairSchedulingForYARN-V1.02.pdf, 
> ProposalOfTimeExtendedFairSchedulingForYARN-V1.03.pdf
> This proposal talks about the issues of YARN fair scheduling policy, and 
> tries to solve them by YARN-3806 and the new scheduling policy called time 
> extended fair scheduling.
> Time extended fair scheduling policy is proposed to enforces fairness over 
> time among users. For example, if two users share the cluster weekly, each 
> user’s fair share is half of the cluster per week. At a particular week, if 
> the first user has used the whole cluster for first half of the week, then in 
> second half of the week, second user will always have priority to use cluster 
> resources since the first user has used up its time extended fair share of 
> the cluster already.

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