[SR-Users] High availability design with Kamailio

[Daniel-Constantin Mierla]

Hello,

the wiki is open for everyone to contribute:
   * http://www.kamailio.org/wiki/

You need to make yourself an account, the anonymous posting based on 
CAPTCHA was disabled due to spam bots easily breaking CAPTCHA system and 
posting spam.

If someone takes the time to search a bit through the archive, probably 
can find useful information to add to such page, then perhaps other 
people will come and contribute more.

The mailing list is full of useful information, the problem is that not 
many people are digesting it and write wiki pages ... most of the 
content is by core developers, but they have other tasks as well, so a 
hand from user community will be more useful.

Cheers,
Daniel

On 6/11/12 12:48 PM, SamyGo wrote:
> Hi,
>
> I personally think that there needs to be an official wiki page giving 
> details about a basic redundant/HA server setup. A lot of people need 
> this on regular basis. So I request forum members and contributors to 
> share their guidelines on this.
>
> Thanks,
> Sammy Go.
>
> On Mon, Jun 11, 2012 at 3:32 PM, Carsten Bock <carsten at ng-voice.com 
> <mailto:carsten at ng-voice.com>> wrote:
>
>     Hi Carel,
>
>     this is a rather complex question with no simple yes or no answer.
>     You can use the dialog module with no "in-memory" storage of dialog
>     data and leave it to the database to do the replication. I think
>     postgres has Multi-Master Replication, i am not sure about MySQL.
>     At a major german telco operator, we did something similar: We had two
>     servers, both with different addresses and an Alias for the other
>     server. In that case, we had two loadbalancers (logically one in a HA
>     setup) in front, who would do the failover in case. Worked fine.
>
>     Carsten
>
>
>
>     2012/6/5 Reinhard, Carel (GD) <Carel.Reinhard at srgssr.ch
>     <mailto:Carel.Reinhard at srgssr.ch>>:
>     > Dear all, hope to get some information from you guys!
>     >
>     >
>     >
>     > For a redundant service we have to build up SIP proxy/registrar
>     server in a
>     > high available scenario. Therefore, we will have 2 SIP
>     proxy/registrar on
>     > two completely independent servers. They should be SIP dialog
>     stateful and
>     > replicate all the session/call states between each other. If one
>     server
>     > fails, the other should have all the SIP dialog information for call
>     > handling and accounting. How can this done in a stable and
>     reliable way? Is
>     > this feature mature enough to support enterprise requirements?
>     >
>     > The only information I have is to build it up with the
>     DISPATCHER module,
>     > but it seems more to be a stateless load-balancer instead of a
>     HA module.
>     >
>     >
>     >
>     > Who has experience with HA failover designs with Kamailio and
>     can give me
>     > some hints?
>     >
>     >
>     >
>     > Thank you very much in advance
>     >
>     > Kind regards
>     >
>     > Carel
>     >
>     >
>     >
>     >
>     >
>     > Carel Reinhard
>     > Security and VoIP Engineer
>     >
>     >
>     >
>     > SRG SSR Switzerland
>     >
>     > Telefon direkt +41 31 350 94 07 <tel:%2B41%2031%20350%2094%2007>
>     >
>     > Carel.Reinhard at srgssr.ch <mailto:Carel.Reinhard at srgssr.ch>
>     >
>     >
>     >
>     >
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>     >
>
>
>
>     --
>     Carsten Bock
>     CEO (Geschäftsführer)
>
>     ng-voice GmbH
>     Schomburgstr. 80
>     D-22767 Hamburg / Germany
>
>     http://www.ng-voice.com
>     mailto:carsten at ng-voice.com <mailto:carsten at ng-voice.com>
>
>     Mobile +49 179 2021244 <tel:%2B49%20179%202021244>
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>
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>
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>
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-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Seattle, USA, Sep 23-26, 2012 - http://asipto.com/u/katu
Kamailio Practical Workshop, Netherlands, Sep 10-12, 2012 - http://asipto.com/u/kpw



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