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From "Wei Shao (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-3808) Proposal of Time Extended Fair Scheduling for YARN
Date Sat, 20 Jun 2015 23:49:02 GMT

     [ https://issues.apache.org/jira/browse/YARN-3808?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

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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