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MapReduce >> mail # user >> Any answer ?  Candidate application for map reduce


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Re: Any answer ? Candidate application for map reduce
Hi Bala,

A standard benchmark program for mapreduce is terasort, which is included
in the hadoop examples jar.  You can generate data for it using teragen,
which runs a map-only job:

hadoop jar path-to-examples-jar.jar <number of records> <directory to put
them in>

and then sort the data using terasort:

hadoop jar path-to-examples-jar.jar <input directory> <output directory>

-Sandy

On Mon, Mar 25, 2013 at 4:12 AM, AMARNATH, Balachandar <
[EMAIL PROTECTED]> wrote:

> Hello Yanbo Liang,****
>
> ** **
>
> My issue is  that I neither do not have data nor I have an application!  I
> was looking for an open source benchmark application to test this,
> preferably, if the application (or simple test code) is related to image
> processing domain****
>
> ** **
>
> Regards****
>
> Bala****
>
> ** **
>
> ** **
>
> ** **
>
> *From:* Yanbo Liang [mailto:[EMAIL PROTECTED]]
> *Sent:* 25 March 2013 14:55
> *To:* [EMAIL PROTECTED]
> *Subject:* Re: Any answer ? Candidate application for map reduce****
>
> ** **
>
> From your description "split the data in to chunks, feed the chunks to
> the application, and merge the processed chunks to get A back" is just suit
> for the MapReduce paradigm. First you can feed the split chunks to Mapper
> and merge the processed chunks at Reducer. Why did you not use MapReduce
> paradigm? ****
>
> 2013/3/25 Raymond Tay <[EMAIL PROTECTED]>****
>
> Hello Bala,****
>
> ** **
>
> I bumped into your email by chance. ****
>
> ** **
>
> I'm not sure what you are after, really because if you wanted something
> like image processing and feature detection then hadoop's mailing list is
> probably not the place and you might want to join NVIDIA's or ATI's CUDA /
> OpenCL forums.****
>
> ** **
>
> Hope this helps****
>
> Ray****
>
> ** **
>
> On 25 Mar, 2013, at 1:47 PM, "AMARNATH, Balachandar" <
> [EMAIL PROTECTED]> wrote:****
>
>
>
> ****
>
> Any answers from anyone of you J****
>
>  ****
>
>  ****
>
> Regards****
>
> Bala****
>
>  ****
>
> *From:* AMARNATH, Balachandar [mailto:[EMAIL PROTECTED]]
> *Sent:* 22 March 2013 10:25
> *To:* [EMAIL PROTECTED]
> *Subject:* Candidate application for map reduce****
>
>  ****
>
> Hello,****
>
>  ****
>
> I am looking for an sample application (preferably image processing,
> feature detection etc) that can be good candidate of map reduce paradigm.
> To very specific, I am looking for an open source simple application that
> process data and produce some results (A). When you split the data in to
> chunks, feed the chunks to the application, and merge the processed chunks
> to get A back. Is there any website where can I look into such kind of
> benchmark applications ? Any pointers and thoughts will be helpful here.**
> **
>
>  ****
>
> With thanks and regards****
>
> Balachandar****
>
>  ****
>
>  ****
>
>  ****
>
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