Server Scaling

[David Peterson]

OK so accounting is a very moving target.  Noted.  I am probably going to
table that discussion for another time.

Typically the NAS requires a session timeout in order to be able to
disconnect an unauthorized user.    I usually recommend once per day be the
minimum.  

The NAS will have more or less subscribers depending on the population
surrounding the NAS.  

The only thing that would cause all subscribers to come online at once is a
FR server reboot or something severing the connection between the NAS
network and FR.  So I guess the answer would be yes, something could cause
that to happen.

I am really looking for some idea not a hard and fast recommendation.
Something like "any quad core will do" or "you are going to need a lot of
ram and processor power".


David

-----Original Message-----
From:
freeradius-users-bounces+davidp=wirelessconnections.net at lists.freeradius.org
[mailto:freeradius-users-bounces+davidp=wirelessconnections.net at lists.freera
dius.org] On Behalf Of Arran Cudbard-Bell
Sent: Thursday, January 9, 2014 2:08 PM
To: FreeRadius users mailing list
Subject: Re: Server Scaling


On 9 Jan 2014, at 18:30, David Peterson <davidp at wirelessconnections.net>
wrote:

> Here is the core data:
> 200 NAS
> 50,000 WiMax users
> 1 authentication per day
> Protocol EAP-TTLS
> MySQL database (either on the same server or off, looking for 
> recommendations on that).
> Accounting (looking for a recommendation on whether or not it should 
> be hosted separately.
> 
> Is that enough information or am I still missing something?

For accounting data the bulk of the packets are usually interims, so you
need to specify what the interim interval will be.

Is there a particular reason every single one of your subscribers will
re-authenticate at least once a day?

What will be the maximum number of users connected to a single NAS (will it
be 250, or will some NAS have more)? Are the NAS completely independent? Is
there anything that could cause all subscribers to drop offline and come
back at once, or will such incidents be limited to a single NAS?

Arran Cudbard-Bell <a.cudbardb at freeradius.org> FreeRADIUS Development Team

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