[asterisk-dev] How to get to 10.000 open calls

[Alex Balashov]

A proxy derived from the OpenSER stack could do it.

Venefax wrote:

> Yes, I have the box. And I will get the calls next week. I was thinking to
> use the Asterisk feature where you can start different Asterisk using -C
> \path_to\config\file, and start 15 instances. But to be able to load balance
> it is a nightmare, since many clients do not accept or follow redirects (SIP
> 302 Moved). I am out of tricks, unless I setup another technology for load
> balancing but then why not use the same (x) technology for everything? What
> technology would that be that can handle 10.000 sip connections, not
> touching the media? My Cisco 7301 would not scale so far out.
> 
> -----Original Message-----
> From: asterisk-dev-bounces at lists.digium.com
> [mailto:asterisk-dev-bounces at lists.digium.com] On Behalf Of Tzafrir Cohen
> Sent: Wednesday, April 22, 2009 3:19 AM
> To: asterisk-dev at lists.digium.com
> Subject: Re: [asterisk-dev] How to get to 10.000 open calls
> 
> On Wed, Apr 22, 2009 at 02:48:11AM -0400, Venefax wrote:
>> I am using 1.6.2 and directrtp=yes. I need to scale to 10.000 open calls
> on
>> a box with 1288 GB or RAM and 16 Cores. Is there any modification to the
>> source code that would be obvious, any bottlenecks? I will never to
>> transcoding and the media should, theoretically, flow outside. I have 15
> IP
>> addresses already configured in the same box, on two different nics, to
>> spread the interrupts. Is this a dream or will this work with some
> tweaking?
> 
> Do you have the system now?
> 
> While it's most likely be a dream, identifying the current bottlenecks
> might  be useful :-)
> 
> Just a few uneducated guesses of my own:
> 
> * More than one IP per NIC won't help and only cause some administrative
>   issues
> * I'm not sure how much the extra memory can help. I suspect htat if you
>   boot the system with mem=<whatever_needed_for_16GB> the results won't
>   differ greatly
> * It would also be interesting to see how the results scale with various
>   values numbers of cores. This is again something you can set at boot
>   (numcpus=N). I wonder just how far from linear it will be.
> 


-- 
Alex Balashov
Evariste Systems
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