Mailing-List: contact hama-dev-help@incubator.apache.org; run by ezmlm
Precedence: bulk
Reply-To: hama-dev@incubator.apache.org
Date: Thu, 10 May 2012 18:28:52 +0000 (UTC)
From: "Suraj Menon (JIRA)" <jira@apache.org>
To: hama-dev@incubator.apache.org
Message-ID: 
 <523620794.50662.1336674532760.JavaMail.tomcat@hel.zones.apache.org>
In-Reply-To: 
 <1075245903.2018.1332419902282.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] [Commented] (HAMA-535) Implement MapReduce in BSP
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


    [ https://issues.apache.org/jira/browse/HAMA-535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13272606#comment-13272606 ] 

Suraj Menon commented on HAMA-535:
----------------------------------

Hi, Please check the link below for an outline of the solution that I want to propose. The key difference here from the Hadoop MR is that since BSP Task can communicate with each other, it can share the existent key distribution among each other. We can have different strategies to choose which reducer to run on what set of keys based on the key distribution that every peer gets. This is handled in ReducerKeyDesignator.java.

https://github.com/ssmenon/hama/tree/master/hama-mapreduce/src/org/apache/hama/computemodel/mapreduce
                
> Implement MapReduce in BSP
> --------------------------
>
>                 Key: HAMA-535
>                 URL: https://issues.apache.org/jira/browse/HAMA-535
>             Project: Hama
>          Issue Type: New Feature
>          Components: examples
>            Reporter: Thomas Jungblut
>            Assignee: Suraj Menon
>
> Suraj had the idea of implementing MapReduce on top of Apache Hama.
> This is generally possible because BSP is a generalization to MapReduce.
> We should just make up a simple API compatible version to Hadoop and put it into our example module.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira