map-reduce question: map done on many servers

[Krzysztof Kulewski]

Hello, 

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 
box? 

BR,
Krzysztof