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From "Thomas Jungblut (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HAMA-439) Reorganize modules for YARN/MR-NextGen integration
Date Tue, 27 Sep 2011 14:33:11 GMT

    [ https://issues.apache.org/jira/browse/HAMA-439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13115535#comment-13115535
] 

Thomas Jungblut commented on HAMA-439:
--------------------------------------

Hah, that was not very well timed.
The shellscript is a great idea. But as you can see in my last post, we need to decouple a
few things before we can move them.
So our patch will be a bit bigger than the shell script.

Any idea to the client package? Why do we need an extra module for the client?
                
> Reorganize modules for YARN/MR-NextGen integration
> --------------------------------------------------
>
>                 Key: HAMA-439
>                 URL: https://issues.apache.org/jira/browse/HAMA-439
>             Project: Hama
>          Issue Type: Sub-task
>    Affects Versions: 0.3.0
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Thomas Jungblut
>             Fix For: 0.4.0
>
>         Attachments: HAMA-349-20110927.txt, HAMA-349-move-20110927.sh, HAMA-439.patch
>
>
> I'd like to get started on HamaV2 to work with YARN/MR-nextgen.
> Here's what I think should be the module structure:
>  - *api*: Code from HamaV1 related to APIs that will be moved to this new module. This
will mainly have the BSP APIs: _BSP_, _BSPPeerInterface_ and all the related records like
_BSPMessage_, _BSPMessageBundle etc.
>  - *core*: Current/HamaV1 server code. Will have the current _BSPMaster_/_GroomServer_
infrastructure. We should probably rename it to {{classic-server}} or something similar.
>  - *server*: New Hama server implementation to work with YARN. Will have _BSPApplicationMaster_,
_BSPTask_ and related code.
>  - *client*: Code from HamaV1 related to client that will be moved to this new module.
This will mainly have the client-submission classes/interfaces like _BSPJob_, _BSPJobClient_,
_JobStatus_ etc. It will be configurable to either run with the classic-server implementation
or with YARN.
> There will not be any package changes but only code-moves across modules, so we will
be backwards compatible.
> How does it look? Any thoughts/suggestions?

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