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From "Xuan Gong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1990) Track time-to-allocation for different size containers
Date Fri, 01 May 2015 23:31:06 GMT

    [ https://issues.apache.org/jira/browse/YARN-1990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14524290#comment-14524290

Xuan Gong commented on YARN-1990:

Close this ticket based on [~curino]'s comment.

> Track time-to-allocation for different size containers 
> -------------------------------------------------------
>                 Key: YARN-1990
>                 URL: https://issues.apache.org/jira/browse/YARN-1990
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
> Allocation of Large Containers are notoriously problematic, as smaller containers can
more easily grab resources. 
> The proposal for this JIRA is to maintain a map of container sizes, and time-to-allocation,
that can be used as:
> * general insight on cluster behavior, 
> * to inform the reservation-system, and allows us to "account for delays" in allocation,
so that the user reservation is respected regardless the size of containers requested.

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