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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-469) Make scheduling mode in FS pluggable
Date Tue, 19 Mar 2013 05:29:15 GMT

     [ https://issues.apache.org/jira/browse/YARN-469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karthik Kambatla updated YARN-469:
----------------------------------

    Attachment: yarn-469.patch

Thanks for your review, Alejandro. 

Uploading a new patch that
# Re-uses the scheduling mode instances instead of creating a new instance for every queue
using guava caches
# Addresses Alejandro's first 2 comments (nits)
# Configures SchedulingMode.DEFAULT_MODE to defaultSchedulingMode

Will address Alejandro's last point about non-leaf queue in YARN-482 that adds the ability
to configure intermediate queues.
                
> Make scheduling mode in FS pluggable
> ------------------------------------
>
>                 Key: YARN-469
>                 URL: https://issues.apache.org/jira/browse/YARN-469
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: scheduler
>    Affects Versions: 2.0.3-alpha
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>              Labels: scheduler
>         Attachments: yarn-469.patch, yarn-469.patch, yarn-469.patch
>
>
> Currently, scheduling mode in FS is limited to Fair and FIFO. The code typically has
an if condition at multiple places to determine the correct course of action.
> Making the scheduling mode pluggable helps in simplifying this process, particularly
as we add new modes (DRF in this case).

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