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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-234) Support for writing Map/Reduce functions in C++
Date Sun, 18 Feb 2007 08:30:05 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-234?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Owen O'Malley updated HADOOP-234:
---------------------------------

    Attachment: hadoop-pipes.html

This is my current plan of approach.

> Support for writing Map/Reduce functions in C++
> -----------------------------------------------
>
>                 Key: HADOOP-234
>                 URL: https://issues.apache.org/jira/browse/HADOOP-234
>             Project: Hadoop
>          Issue Type: New Feature
>          Components: mapred
>            Reporter: Sanjay Dahiya
>         Assigned To: Owen O'Malley
>             Fix For: 0.12.0
>
>         Attachments: Hadoop MaReduce Developer doc.pdf, Hadoop MaReduce Developer doc.pdf,
hadoop-pipes.html
>
>
> MapReduce C++ support
> Requirements 
> 1. Allow users to write Map, Reduce, RecordReader, and RecordWriter functions in C++,
rest of the infrastructure already present in Java should be reused. 
> 2. Avoid users having to write both Java and C++ for this to work. 
> 3. Avoid users having to work with JNI methods directly by wrapping them in helper functions.

> 4. The interface should be SWIG'able.

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