[ 
https://issues.apache.org/jira/browse/YARN-3446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15082601#comment-15082601
 ] 

zhihai xu commented on YARN-3446:
---------------------------------

thanks for the review! Just updated the patch at YARN-3446.004.patch.

> FairScheduler HeadRoom calculation should exclude nodes in the blacklist.
> -------------------------------------------------------------------------
>
>                 Key: YARN-3446
>                 URL: https://issues.apache.org/jira/browse/YARN-3446
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler
>            Reporter: zhihai xu
>            Assignee: zhihai xu
>         Attachments: YARN-3446.000.patch, YARN-3446.001.patch, 
> YARN-3446.002.patch, YARN-3446.003.patch, YARN-3446.004.patch
>
>
> FairScheduler HeadRoom calculation should exclude nodes in the blacklist.
> MRAppMaster does not preempt the reducers because for Reducer preemption 
> calculation, headRoom is considering blacklisted nodes. This makes jobs to 
> hang forever(ResourceManager does not assign any new containers on 
> blacklisted nodes but availableResource AM get from RM includes blacklisted 
> nodes available resource).
> This issue is similar as YARN-1680 which is for Capacity Scheduler.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to