Hi,
for balancing between kamailia you have to run certain DMQs for state
exchange (registration, hash tables,...). Regarding RTPEngine - you have to
have a failover cluster with Redis, where each RTPEngine will write keys
and at the same time receive the Subscription keyspace of the other
RTPEngines.

Michal

st 6. 11. 2024 v 4:33 odesílatel Evgenii Buchnev via sr-users <
[email protected]> napsal:

> Hi Dear Community,
>
> Would appreciate your input into where to look further to explore my
> options and would be good to learn your experience with the following.
>
> There are many active-active kamailio nodes behind tcp load balancer. On
> the same VM with each Kamailio there is an instance of RTPEngine to manage
> Media/Transcoding/Etc for that Kamailio. This scales UP easily - new nodes
> just added behind tcp load balancer. To be able to scale down and/or update
> node configuration - I'd like to be able to drain sessions/calls properly
> and pass any active calls from current Kamailio and RTPEngine to other
> nodes.
>
> DMQ is not yet in place, although it's planned.
>
> What would be proper ways of migrating RTP sessions to other RTPEngines?
> Caveats?
>
> Also wonder how properly a tcp/tls based SIP session can be passed to
> another Kamailio?
>
> Thank you in advance for your input.
>
> Evgenii Buchnev
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