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From Alexander Shorin <>
Subject Re: general question about couch performance
Date Fri, 18 Jan 2013 19:59:38 GMT
On Fri, Jan 18, 2013 at 11:08 PM, Robert Newson <> wrote:
> The main bottleneck is the view server protocol itself (its serial,
> synchronous nature), at least for views. The biggest improvement would
> be batching or at least async.

I'd noted, that this have changed in 1.3: view server may receive
multiple map_doc commands before he return some result. This mean,
that view server may be process documents in async way for some cases,
when document mapping is a long and heavy process. However, view
server should return response in the same order as documents he
received, but this may be changed if view server will return result
with document id on board, so CouchDB will know for which document
this kvs are belongs to.


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