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From "Vinod Kumar Vavilapalli (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3315) Master-Worker Application on YARN
Date Tue, 03 Apr 2012 19:02:24 GMT

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Vinod Kumar Vavilapalli commented on MAPREDUCE-3315:
----------------------------------------------------

We have a hadoop-yarn/hadoop-yarn-applications/ module under which you can put your framework
(as a sibling to hadoop-yarn-applications-distributedshell/). The example could go as a sub-module
under yours.

Taking a step back, I think you should start with writing down the APIs:
 (1) The client API for submission and getting the app-status.
 (2) The task API: which the users can override and provide their own impl.
 Advanced: (3) The master API: as to how to order the tasks (a queue?) etc. 
                
> Master-Worker Application on YARN
> ---------------------------------
>
>                 Key: MAPREDUCE-3315
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3315
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>            Reporter: Sharad Agarwal
>            Assignee: Sharad Agarwal
>             Fix For: 0.24.0
>
>         Attachments: MAPREDUCE-3315.patch
>
>
> Currently master worker scenarios are forced fit into Map-Reduce. Now with YARN, these
can be first class and would benefit real/near realtime workloads and be more effective in
using the cluster resources.

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