[SR-Users] High availability design with Kamailio

[Carsten Bock]

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>:
> 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
>
> Carel.Reinhard at srgssr.ch
>
>
>
>
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>



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