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From "Arun Suresh (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (YARN-3866) AM-RM protocol changes to support container resizing
Date Wed, 07 Dec 2016 22:44:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-3866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15730171#comment-15730171
] 

Arun Suresh edited comment on YARN-3866 at 12/7/16 10:44 PM:
-------------------------------------------------------------

Also thanks for raising this [~ajisakaa], [~djp]..

As [~leftnoteasy] mentioned, the {{ApplicationMasterProtocol}} is a lower level protocol and
end user applications should be using the {{AMRMClient}}.

Given that the increase/decrease resources are not available in any current version of hadoop,
and given that YARN-5221 was raised to unify all container updates (resources and ExecutionType
etc.) into a single API, I am not in favor of adding back the (set/get)(Increase/Decrease)(Requests/Containers)
API as it will cause problems for future upgrades, if people do start using them.



was (Author: asuresh):
As [~leftnoteasy] mentioned, the {{ApplicationMasterProtocol}} is a lower level protocol and
end user applications should be using the {{AMRMClient}}.

Given that the increase/decrease resources are not available in any current version of hadoop,
and given that YARN-5221 was raised to unify all container updates (resources and ExecutionType
etc.) into a single API, I am not in favor of adding back the (set/get)(Increase/Decrease)(Requests/Containers)
API as it will cause problems for future upgrades, if people do start using them.



> AM-RM protocol changes to support container resizing
> ----------------------------------------------------
>
>                 Key: YARN-3866
>                 URL: https://issues.apache.org/jira/browse/YARN-3866
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: api
>            Reporter: MENG DING
>            Assignee: MENG DING
>             Fix For: 2.8.0, 3.0.0-alpha1
>
>         Attachments: YARN-3866-YARN-1197.4.patch, YARN-3866.1.patch, YARN-3866.2.patch,
YARN-3866.3.patch
>
>
> YARN-1447 and YARN-1448 are outdated. 
> This ticket deals with AM-RM Protocol changes to support container resize according to
the latest design in YARN-1197.
> 1) Add increase/decrease requests in AllocateRequest
> 2) Get approved increase/decrease requests from RM in AllocateResponse
> 3) Add relevant test cases



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