[OpenSIPS-Users] LB Re: [OpenSIPS-Business] [OpenSIPS-Devel] OpenSIPS at Amoocon (former AsteriskTag)

[Stefan Sayer]

Hi Bogdan,

o Bogdan-Andrei Iancu [05/07/09 11:01]:
> Hi,
> 
> The Amoocon conference ended !
> 
> The presentations were uploaded on the OpenSIPS web site, so you can 
> browse them at :
>           http://www.opensips.org/Events/Amoocon2009

 >...
>>> Covered topics are : Load-balancing (using the new load-balancer module) 
>>> , Presence (deploy presence) and clustering (OpenSIPS + PBX integration):
>>>
>>> (1) Load balancing Workshop:
>>>      http://www.amoocon.de/talks/8

I must say I have not looked into the code but only at
http://www.opensips.org/pub/events/2009-05-04_Amoocon_Rostock/OpenSIPS_LoadBalancing.pdf
but I am not convinced: For load balancing that could be done 
statelessly wrt SIP dialog you are keeping dialog state at the LB.

If you have control over the media servers (as you do with 
freeswitch/asterisk/yate you mentioned) the same could be achieved much 
simpler by periodically reporting current load (e.g. in extra header to 
OPTIONS response or any other SIP message) from the media servers to LB 
and keeping that information as soft state there.

If you need dialog state in some proxy anyway for other purposes of 
course you have that information, but for a dedicated LB like on p12 I 
doubt it makes sense.

Stefan

-- 
Stefan Sayer
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