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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-3026) Move application-specific container allocation logic from LeafQueue to FiCaSchedulerApp
Date Wed, 14 Jan 2015 21:36:36 GMT

     [ https://issues.apache.org/jira/browse/YARN-3026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Wangda Tan updated YARN-3026:
-----------------------------
    Attachment: YARN-3026.2.patch

Rebased against trunk and fixed findbugs warning.

> Move application-specific container allocation logic from LeafQueue to FiCaSchedulerApp
> ---------------------------------------------------------------------------------------
>
>                 Key: YARN-3026
>                 URL: https://issues.apache.org/jira/browse/YARN-3026
>             Project: Hadoop YARN
>          Issue Type: Task
>          Components: capacityscheduler
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>         Attachments: YARN-3026.1.patch, YARN-3026.2.patch
>
>
> Have a discussion with [~vinodkv] and [~jianhe]: 
> In existing Capacity Scheduler, all allocation logics of and under LeafQueue are located
in LeafQueue.java in implementation. To make a cleaner scope of LeafQueue, we'd better move
some of them to FiCaSchedulerApp.
> Ideal scope of LeafQueue should be: when a LeafQueue receives some resources from ParentQueue
(like 15% of cluster resource), and it distributes resources to children apps, and it should
be agnostic to internal logic of children apps (like delayed-scheduling, etc.). IAW, LeafQueue
shouldn't decide how application allocating container from given resources.



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