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Posted to yarn-issues@hadoop.apache.org by "Wangda Tan (JIRA)" <ji...@apache.org> on 2015/07/21 02:21:05 UTC
[jira] [Updated] (YARN-3026) Move application-specific container
allocation logic from LeafQueue to FiCaSchedulerApp
[ https://issues.apache.org/jira/browse/YARN-3026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wangda Tan updated YARN-3026:
-----------------------------
Attachment: YARN-3026.3.patch
Attached ver.3 patch, reworked on the patch, since we have a lot of code changes since ver.2.
> 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, YARN-3026.3.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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