[jira] [Updated] (YARN-10899) control whether non-exclusive allocation is used

["KWON BYUNGCHANG (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-10899?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

KWON BYUNGCHANG updated YARN-10899:
-----------------------------------
    Summary: control whether non-exclusive allocation is used  (was: controll whether non-exclusive allocation is used)

> control whether non-exclusive allocation is used
> ------------------------------------------------
>
>                 Key: YARN-10899
>                 URL: https://issues.apache.org/jira/browse/YARN-10899
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: KWON BYUNGCHANG
>            Priority: Major
>
> A non-exclusive partition has the advantage of increasing resource utilization.
> But, it is not useful in all use cases.
> In the case of a long-running container,
> if it is allocated with non-exclusive allocation, it is more likely to be preempted and the overhead of repeating the same operation occurs.
> A function that can control whether non-exclusive allocation is used from the user's point of view is required.
> I suggest:
> When node label expression is empty string, only default partition without non-exclusive partition is used,
> when node label expression is null, only it allowed non-exclusive allocation.
> I will attach patch.



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