[SR-Users] 2 Kamailio servers on same domain

[Michael Nielsen]

I'm using Amason's Route 53 DNS service with latency.
So my A-records contains 2 IP's and Amazon keeps track of latency so it
will deliver the correct IP for a given user.

These two IP contains identical installations of Kamailio - which share the
same postgresql database.
I've set usrloc db_mode = 3 so there's no cache in location of users in
memory...

But NAT seems to be an issue even though WITH_NAT is enabled :(

On Thu, Nov 26, 2015 at 4:37 PM, Daniel Tryba <d.tryba at pocos.nl> wrote:

> On Thursday 26 November 2015 16:00:09 Michael Nielsen wrote:
> > I've setup a single domain, sip.my-domain.com, with latency responds to
> the
> > 2 servers.
> >
> > So a user will always land on the server with the fastest responds in a
> > respective area of the world.
>
> What does this mean? How do you do this?
>
> > However, it seems as if 2 users are registered on different Kamailio
> > servers - even though they share the same database - they cannot call
> each
> > other?
> >
> > Have I misunderstood something?
>
> If the endpoints communicate directly to a sipserver and they have
> different
> adresses, a router/firewall/nattranslation will not match the traffic from
> any
> other adres to the translated port.
>
> You could try branching to the other kamailio instance on failure to solve
> this.
>
> Or you could try to use the socket column in the location table to figure
> out
> if the invite needs to be handled localy.
>
> Or you might be able to abuse Path on registration (by inserting a Path
> header
> manually)
>
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