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https://issues.apache.org/jira/browse/YARN-7527?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lei (Eddy) Xu updated YARN-7527:
--------------------------------
    Fix Version/s:     (was: 3.0.1)
                   3.0.3

> Over-allocate node resource in async-scheduling mode of CapacityScheduler
> -------------------------------------------------------------------------
>
>                 Key: YARN-7527
>                 URL: https://issues.apache.org/jira/browse/YARN-7527
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacityscheduler
>    Affects Versions: 3.0.0-alpha4, 2.9.1
>            Reporter: Tao Yang
>            Assignee: Tao Yang
>            Priority: Major
>             Fix For: 3.1.0, 3.0.3
>
>         Attachments: YARN-7527-branch-2.001.patch, YARN-7527.001.patch
>
>
> Currently in async-scheduling mode of CapacityScheduler, node resource may be 
> over-allocated since node resource check is ignored.
> {{FiCaSchedulerApp#commonCheckContainerAllocation}} will check whether this 
> node have enough available resource for this proposal and return check result 
> (ture/false), but this result is ignored in {{CapacityScheduler#accept}} as 
> below.
> {noformat}
> commonCheckContainerAllocation(allocation, schedulerContainer);
> {noformat}
> If {{FiCaSchedulerApp#commonCheckContainerAllocation}} returns false, 
> {{CapacityScheduler#accept}} should also return false as below:
> {noformat}
> if (!commonCheckContainerAllocation(allocation, schedulerContainer)) {
>   return false;
> }
> {noformat}



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