[jira] [Commented] (YARN-6428) Queue AM limit is not honored in cs

["Bibin A Chundatt (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-6428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15953068#comment-15953068 ] 

Bibin A Chundatt commented on YARN-6428:
----------------------------------------

{{ResourceCalculator#multiplyAndNormalizeUp}} using double to multiply and ceil for am limit factor.
{code}
roundUp(
            (int)Math.ceil(r.getMemorySize() * by)
{code}
will give 4097 instead of 4096 .

> Queue AM limit is not honored  in cs 
> -------------------------------------
>
>                 Key: YARN-6428
>                 URL: https://issues.apache.org/jira/browse/YARN-6428
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Bibin A Chundatt
>            Assignee: Bibin A Chundatt
>
> Steps to reproduce
> ------------------------
> Setup cluster with 40 GB and 40 vcores with 4 Node managers with 10 GB each.
> Configure 100% to default queue as capacity and max am limit as 10 %
> Minimum scheduler memory and vcore as 512,1
> *Expected* 
> AM limit 4096 and 4 vores
> *Actual*
> AM limit 4096+512 and 4+1 vcore



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