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https://issues.apache.org/jira/browse/YARN-3996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15046055#comment-15046055
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Hitesh Shah commented on YARN-3996:
-----------------------------------

Why should a minimum resource of 0 be ever supported? 

> YARN-789 (Support for zero capabilities in fairscheduler) is broken after 
> YARN-3305
> -----------------------------------------------------------------------------------
>
>                 Key: YARN-3996
>                 URL: https://issues.apache.org/jira/browse/YARN-3996
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacityscheduler, fairscheduler
>            Reporter: Anubhav Dhoot
>            Assignee: Neelesh Srinivas Salian
>            Priority: Critical
>         Attachments: YARN-3996.001.patch, YARN-3996.002.patch, 
> YARN-3996.003.patch, YARN-3996.prelim.patch
>
>
> RMAppManager#validateAndCreateResourceRequest calls into normalizeRequest 
> with mininumResource for the incrementResource. This causes normalize to 
> return zero if minimum is set to zero as per YARN-789



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