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Posted to yarn-issues@hadoop.apache.org by "Lei (Eddy) Xu (JIRA)" <ji...@apache.org> on 2018/04/04 20:00:00 UTC
[jira] [Updated] (YARN-7527) Over-allocate node resource in
async-scheduling mode of CapacityScheduler
[ https://issues.apache.org/jira/browse/YARN-7527?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
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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