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Posted to yarn-issues@hadoop.apache.org by "Weiwei Yang (JIRA)" <ji...@apache.org> on 2019/06/06 10:40:00 UTC

[jira] [Commented] (YARN-9590) Correct incompatible, incomplete and redundant activities

    [ https://issues.apache.org/jira/browse/YARN-9590?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16857513#comment-16857513 ] 

Weiwei Yang commented on YARN-9590:
-----------------------------------

Hi [~Tao Yang]

Thanks, good cleanup, and fixes. Just one thing curious. Currently, ActivitiesManager maintains such a map of queues

ConcurrentMap<ApplicationId, Queue<AppAllocation>> completedAppAllocations

and each queue is a \{{ConcurrentLinkedQueue}}. But since what wanted here is a limited-size queue, why don't you use, e.g guava's EvictingQueue?

> Correct incompatible, incomplete and redundant activities
> ---------------------------------------------------------
>
>                 Key: YARN-9590
>                 URL: https://issues.apache.org/jira/browse/YARN-9590
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Tao Yang
>            Assignee: Tao Yang
>            Priority: Major
>         Attachments: YARN-9590.001.patch, YARN-9590.002.patch, YARN-9590.003.patch
>
>
> Currently some branches in scheduling process may generate incomplete or duplicate activities, we should fix them to make activities clean.



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