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https://issues.apache.org/jira/browse/YARN-3996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14947142#comment-14947142
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Neelesh Srinivas Salian commented on YARN-3996:
-----------------------------------------------

I'll go back and fix those. I know why this happened; the added implementation 
of incrementAllocationCapability on Fifo and Capacity. Need to do this in a 
better way.

Will update soon.

Thank you.

> 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.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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