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From "Krzysztof Kulewski" <>
Subject map-reduce question: map done on many servers
Date Wed, 30 Apr 2008 22:52:45 GMT

I have a question for which I couldn't find solution on docs available 
online. Please help: 

Lets suppose that I have one couchdb server storing text documents. I want 
to do some map reduce on it. Map part take very long time per one doc, so I 
want to distribute maps between 20 map servers (btw. maybe unreliable). And 
then somebody will do the reduce part. 

As I can see, "CouchDB delegates computation of Views to external query 
servers." But I want to use 20 separate machines for doing map part to 
obtain 20x speed-up. 

How to distribute this map part? Is there any pretty solution out of the 


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