[SR-Users] blf in kamailio dmq cluster

[Charles Chance]

Hello,

So I understand that each server has its own FQDN and you want to point
users to their closest proxy, but are all servers part of the same
'logical' domain?

The SIP domain/realm does not have to be the same as the address/hostname
of the individual proxy server that is servicing a request.

Unless, of course, you have a reason to maintain a separate domain for each
city. In which case, I don't believe there is a way to ignore the domain in
handle_publish() - users will need to subscribe to the correct user at domain
combination.

Cheers,

Charles



On 29 November 2017 at 13:49, Aidar Kamalov <aidar.kamalov at gmail.com> wrote:

> I have some kamailio servers in each city: city1.example.com,
> city2.example.com, city3.example.com.
> Users in city1 connects to city1.example.com.
>
> each kamailio has in config:
> alias="city1.example.com"
> alias="city2.example.com"
> alias="city3.example.com"
>
> modparam("dmq", "server_address", "sip:LOCALIP:5050")
> modparam("dmq", "notification_address", "sip:city1.example.com:5050")
> modparam("dmq", "notification_address", "sip:city2.example.com:5050")
> modparam("dmq", "notification_address", "sip:city3.example.com:5050")
> modparam("dmq", "num_workers", 6)
> modparam("dmq_usrloc", "enable", 1)
> modparam("dmq_usrloc", "sync", 1)
>
>         if(is_method("PUBLISH")) {
>                 handle_publish();
>                 if(!dmq_is_from_node()) dmq_t_replicate();
>                 t_release();
>         } else if(is_method("SUBSCRIBE")) {
>                 handle_subscribe();
>                 if(!dmq_is_from_node()) dmq_t_replicate();
>                 t_release();
>         }
>
>
> When publish from city1.example.com replicated to city2.example.com, PUBLISH
> sip:34200 at city1.example.com SIP/2.0 but there is no
> 34200 at city1.example.com in active_watchers table there is
> 34200 at city2.example.com. So when publish is coming to city2.example.com
> handle_publish can not found it, and doesn't send NOTIFY.
>
> Is it any way to ignore domain part in handle_publish()?
>
>
> 2017-11-29 16:23 GMT+03:00 Charles Chance <charles.chance at sipcentric.com>:
>
>> Hello,
>>
>> Why are you trying to operate across domains in the same DMQ cluster?
>> Usually, servers operating in different domains do not need to be aware of
>> each other's user location and/or subscription records - if a request is
>> for another domain, simply forward it to the server(s) responsible for that
>> domain.
>>
>> Also, regardless of DMQ or any replication, publishes for one domain
>> would not match subscriptions for another domain; even on a single server.
>>
>> Can you describe your architecture in more detail and what you are
>> looking to achieve with replication?
>>
>> Cheers,
>>
>> Charles
>>
>>
>> On 29 November 2017 at 12:45, Aidar Kamalov <aidar.kamalov at gmail.com>
>> wrote:
>>
>>> Hello,
>>>
>>> I have two(or more) kamailio servers with dmq module and dmq_usrloc -
>>> sip1.example.com and sip2.example.com
>>> publish and subcribe replication works too.
>>>
>>> BLF works fine if clients connected to the same kamailio server, because
>>> in active_watchers table stored with same domain sip1.example.com
>>>
>>> But what to do when call going from one server to second? Is there any
>>> configuration to ignore domain in pusblish, subscribe, notify, etc?
>>>
>>> --
>>> Aydar A. Kamalov
>>>
>>> _______________________________________________
>>> Kamailio (SER) - Users Mailing List
>>> sr-users at lists.kamailio.org
>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>>
>>
>> --
>> *Charles Chance*
>> Managing Director
>>
>> t. 0330 120 1200    m. 07932 063 891
>>
>> Sipcentric Ltd. Company registered in England & Wales no. 7365592. Registered
>> office: Faraday Wharf, Innovation Birmingham Campus, Holt Street,
>> Birmingham Science Park, Birmingham B7 4BB.
>>
>> _______________________________________________
>> Kamailio (SER) - Users Mailing List
>> sr-users at lists.kamailio.org
>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>
>>
>
>
> --
> Aydar A. Kamalov
>
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
>

-- 
Sipcentric Ltd. Company registered in England & Wales no. 7365592. Registered 
office: Faraday Wharf, Innovation Birmingham Campus, Holt Street, 
Birmingham Science Park, Birmingham B7 4BB.
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