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From "Arun Suresh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5221) Expose UpdateResourceRequest API to allow AM to request for change in container properties
Date Thu, 09 Jun 2016 07:24:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15322073#comment-15322073
] 

Arun Suresh commented on YARN-5221:
-----------------------------------

As per discussions with [~leftnoteasy], [~vinodkv], [~kasha] and [~subru] :

This JIRA proposes the following :
* Introduce a new container {{version}} field to {{Container}}
* Introduce an {{UpdateContainerRequest}} record that consists of
** current container version
** container Id
** new capability
** new execution type
* Remove the {{increase_requests}} and {{decrease_requests}} lists in the {{AllocateRequest}}
and replace with {{update_requests}} which is a list of {{UpdateContainerRequest}} records
* Remove the {{increased_containers}} and {{decreases_containers}} lists in the {{AllocateResponse}}
and replace with {{updated_containers}} which is a list {{Container}} records. The containers
whose update requests are satisfied by the RM will be returned with the container {{version}}
incremented.



> Expose UpdateResourceRequest API to allow AM to request for change in container properties
> ------------------------------------------------------------------------------------------
>
>                 Key: YARN-5221
>                 URL: https://issues.apache.org/jira/browse/YARN-5221
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>
> YARN-1197 introduced APIs to allow an AM to request for Increase and Decrease of Container
Resources after initial allocation.
> YARN-5085 proposes to allow an AM to request for a change of Container ExecutionType.
> This JIRA proposes to unify both of the above into an Update Container API.



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