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From Mikeal Rogers <>
Subject Re: scalabitily of the _changes feed
Date Tue, 27 Sep 2011 13:14:23 GMT
If you're going to do a ton of filters (one per user) you should really go with something in
an application server handling the filters.

Check out Jason Smith's follow library since I know you're a node.js programmer :)

It's crazy stable, it's used all over in the IrisCouch infrastructure.


On Sep 27, 2011, at September 27, 201111:40 AM, Dominic Tarr wrote:

> is it okay to register a huge number of listeners to the changes feed?
> I notice that you can use a filter function, which gets passed the request
> parameters,
> does this mean that the filter function will be called for each doc, for
> each listener on the changes feed?
> or are the results of each filter call cached so that it is possible to
> efficiently register many listeners using the same filter function?
> cheers, Dominic

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