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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2824) Capacity of labels should be zero by default
Date Fri, 07 Nov 2014 18:48:34 GMT

    [ https://issues.apache.org/jira/browse/YARN-2824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14202433#comment-14202433
] 

Wangda Tan commented on YARN-2824:
----------------------------------

Hi [~vinodkv],
Thanks for review and commit.
bq. Non-labeled nodes: Default root-capacity is 100% everywhere
Yes,
bq. Labeled nodes: Default capacity is 0%, which means sum of capacities per label also will
be 0 by default.
Yes, default capacity of labels are 0%, and if parent's capacity is 0, sum of children's capacity
should be 0 too.

Wangda

> Capacity of labels should be zero by default
> --------------------------------------------
>
>                 Key: YARN-2824
>                 URL: https://issues.apache.org/jira/browse/YARN-2824
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>            Priority: Critical
>             Fix For: 2.6.0
>
>         Attachments: YARN-2824-1.patch, YARN-2824-2.patch
>
>
> In existing Capacity Scheduler behavior, if user doesn't specify capacity of label, queue
initialization will be failed. That will cause queue refreshment failed when add a new label
to node labels collection and doesn't modify capacity-scheduler.xml.
> With this patch, capacity of labels should be explicitly set if user want to use it.
If user doesn't set capacity of some labels, we will treat such labels are unused labels.



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