[SR-Users] Kamilio and AWS Route 53 latency regions

[Klaus Darilion]

Hi!

First, if 2 servers share the same DB, then userloc must be switched to 
DB-only mode:
http://kamailio.org/docs/modules/4.0.x/modules/usrloc.html#idp16939424

But this leads you to another problem. As Fred already mentioned, SIP 
clients (or the NAT of the user) often refuse messages which are not 
received from the proxy to which the registration was sent.

The best solution depends on what you exactly want to achieve and how 
many servers you want to add. But a simple workaround would be:
- both proxies use their own DB
- if lookup() fails, then
   - if requests comes from other proxy -> send 404
   - if request comes from user -> forward to other proxy

regards
Klaus

On 14.10.2013 23:12, Coy Cardwell wrote:
> Hi All. Fist time poster here, long time geek.
>
> I am trying to get Kamilio to work in the following configuration and
> after days of googling and configuration attempts, I have come here for
> help.
>
> Two servers, both sharing the same database. Server1, Server2. Both
> servers are behind a NAT (AWS).
>
> If I set the DNS to return both IP addresses for the domain on the A
> record, everything works, all is well.
>
> If I set the DNS to return values based on latency and the Calling
> Client gets Server1's IP Address but the Receiving Client is registered
> to Server2, the call fails from a timeout. I can see the attempt to go
> through at the packet level and a 'non-local' socket message as well.
>
> If the DNS returns Server2's IP Address and the Receiving Client is
> registered to Server2, the call completes.
>
> I have tried numerous variations of the various 'path' and 'registrar'
> options with any joy. I tried making one of the servers the central
> registrar as well. I am not entirely sure I ever set everything
> correctly, but I have tried numerous combinations.
>
> Any thoughts would be appreciated, I only ask this as I think I have
> exhausted my own list of things to try.
>
> Thanks.
>
> - Coy Cardwell
>
>
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