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From Mike Kimber <>
Subject RE: Am I doing something fundamentally wrong?
Date Wed, 06 Jun 2012 07:40:46 GMT
Just as a follow up to this issue, I converted a simple MR view from JavaScript to Erlang,
which brought the View Rebuild time down from approx 8 Hours to 25 minutes. 

Looking at "top" and "mpstat" it seems to use multiple cores/CPU's (although vmstat suggest
it doesn't, which is confusing) 

A good tutorial on Erlang can be found at
should anyone else have the need!



-----Original Message-----
From: Ladislav Thon [] 
Sent: 26 May 2012 17:03
Subject: Re: Am I doing something fundamentally wrong?

> As you say unless we write our MR in erlang its probably not a great fit
> for our document size. But providing we don't have to rebuild them to often
> it does make for a good document store and ETL mechanism for feeding a OLAP
> engine.

Sure, CouchDB is a _great_ document store. I once heard a nice sentence: if
god used a database, it would be CouchDB :-)


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