Network bandwidth bottleneck for sorting of mapreduce intermediate keys?

Posted by Zubair on Stack Overflow See other posts from Stack Overflow or by Zubair
Published on 2010-03-11T08:42:42Z Indexed on 2010/03/13 5:55 UTC
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mapreduce

I have been learning the mapreduce algorithm and how it can potentially scale to millions of machines, but I don't understand how the sorting of the intermediate keys after the map phase can scale, as there will be:

1,000,000 x 1,000,000

: potential machines communicating small key / value pairs of the intermediate results with each other? Isn't this a bottleneck?

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Developer IT

Network bandwidth bottleneck for sorting of mapreduce intermediate keys? - Developer IT

Network bandwidth bottleneck for sorting of mapreduce intermediate keys?

mapreduce

Related posts about mapreduce

Chaining multiple MapReduce jobs in Hadoop.

Error in using Hadoop MapReduce in Eclipse

Help converting java program to MapReduce job

Can a webserver be implemented using mapreduce?

Big Data – Buzz Words: What is MapReduce – Day 7 of 21

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