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From "Sandy Ryza (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-927) Change ContainerRequest to not have more than 1 container count and remove StoreContainerRequest
Date Tue, 16 Jul 2013 02:04:48 GMT

    [ https://issues.apache.org/jira/browse/YARN-927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13709359#comment-13709359
] 

Sandy Ryza commented on YARN-927:
---------------------------------

Removing the ability to request multiple containers would be an annoying regression for a
large class of applications that merely want a non-locality-constrained bunch of processes
on the cluster.  Have you considered allowing StoredContainerRequest to have multiple containers
and including a decrementContainerRequest method?

                
> Change ContainerRequest to not have more than 1 container count and remove StoreContainerRequest
> ------------------------------------------------------------------------------------------------
>
>                 Key: YARN-927
>                 URL: https://issues.apache.org/jira/browse/YARN-927
>             Project: Hadoop YARN
>          Issue Type: Task
>            Reporter: Bikas Saha
>            Assignee: Bikas Saha
>
> The downside is having to use more than 1 container request when requesting more than
1 container at * priority. For most other use cases that have specific locations we anyways
need to make multiple container requests. This will also remove unnecessary duplication caused
by StoredContainerRequest. It will make the getMatchingRequest() always available and easy
to use removeContainerRequest().

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