Ok great. So it sounds like the number of users and roles should be treated 
similarly to the amount of data. So more users and roles would mean more Dnodes 
potentially.

> From: m...@blakeley.com
> Date: Thu, 14 Jul 2011 10:21:03 -0700
> To: general@developer.marklogic.com
> Subject: Re: [MarkLogic Dev General] theoretical or practical limit on        
> number of users\roles?
> 
> I think the situation you describe should be fine. Each user is represented 
> by a document in the Security database - and the same for each role. If you 
> expect more than about 8M documents of either type, I would attach a second 
> forest to the security database. In the past, I've set up systems with 
> hundreds of thousands of roles.
> 
> Note that the admin UI doesn't paginate users or roles. So you may find the 
> admin UI a little tedious to use with millions of them. You may want to plan 
> on building a simple UI of your own for that, using the security API.
> 
> -- Mike
> 
> On 14 Jul 2011, at 10:13 , seme...@hotmail.com wrote:
> 
> > Is there a theoretical or practical limit on the number of users or roles 
> > there are in the system? As number of users increases, how should the 
> > number of Enodes and Dnodes be adjusted, all other things being equal? The 
> > system can support millions or documents; can it support millions of users? 
> > Same questions for roles.
> > 
> > I understand that the number of roles and permissions on a document can 
> > affect performance, but what about just the existence of a large number of 
> > roles in the DB, but each doc only having a few permissions each?
> > 
> > Thanks,
> > Ryan
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