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Posted to yarn-issues@hadoop.apache.org by "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2015/12/16 22:27:46 UTC

[jira] [Updated] (YARN-4462) FairScheduler: Disallow preemption from a queue

     [ https://issues.apache.org/jira/browse/YARN-4462?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Karthik Kambatla updated YARN-4462:
-----------------------------------
    Summary: FairScheduler: Disallow preemption from a queue  (was: Scheduler should prevent certain application from being preempted)

> FairScheduler: Disallow preemption from a queue
> -----------------------------------------------
>
>                 Key: YARN-4462
>                 URL: https://issues.apache.org/jira/browse/YARN-4462
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: fairscheduler
>    Affects Versions: 2.6.0
>            Reporter: Tao Jie
>
> When scheduler preemption is enabled, applications could be preempted if they obtain resource over they should take. 
> When a mapreduce application is preempted some resource, it just runs slower. However, when the preempted application is a long-run service, such as tomcat running in slider, the service would fail.
> So we should have a flag for application to indicate the scheduler that those application should not be preempted. 



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