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Posted to common-issues@hadoop.apache.org by "Junping Du (JIRA)" <ji...@apache.org> on 2012/06/04 08:06:23 UTC

[jira] [Assigned] (HADOOP-8474) Make locatlity in YARN's container assignment and task scheduling pluggable for other deployment topology

     [ https://issues.apache.org/jira/browse/HADOOP-8474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Junping Du reassigned HADOOP-8474:
----------------------------------

    Assignee: Junping Du
    
> Make locatlity in YARN's container assignment and task scheduling pluggable for other deployment topology
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-8474
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8474
>             Project: Hadoop Common
>          Issue Type: Sub-task
>    Affects Versions: 1.0.0, 2.0.0-alpha
>            Reporter: Junping Du
>            Assignee: Junping Du
>
> There are several classes in YARN’s container assignment and task scheduling algorithms that relate to data locality which were updated to give preference to running a container on other locality besides node-local and rack-local (like nodegroup-local). This propose to make these data structure/algorithms pluggable, like: SchedulerNode, RMNodeImpl, etc. The inner class ScheduledRequests was made a package level class to it would be easier to create a subclass, ScheduledRequestsWithNodeGroup.

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