[OpenSIPS-Users] 3 Questions about dispatcher module

[Bogdan-Andrei Iancu]

Hi Peter,

I remember a recent fix about that and the fix was backported to 1.6 
only days ago..

I'm not sure what version (trunk / 1.6) and what release are you using, 
but update from SVN and try again.

Best regards,
Bogdan

Peter P GMX wrote:
> Hello Bogdan,
>
> thanks for this info.
> Concerning Question 2 I try to find an example with opensipsctl to
> disable a destination address (destination address are in the database):
>     opensipsctl fifo ds_set_state i 1sip:127.0.0.1:5080 # set inactive
> Or am I doing wrong something here? Does this also update the database
> table 'dispatcher' or is this non-persistent?
>
> Best regards
> Peter
>
>
> Bogdan-Andrei Iancu schrieb:
>   
>> Hi Peter,
>>
>> Peter P GMX wrote:
>>     
>>> Hello,
>>>
>>> we want to use the dispatcher module for a very simple load balancing
>>> with hash over callid or round robin (we have also tried the
>>> load-balancer module but have problems when we want to use it for
>>> generating 302 redirects).
>>>
>>> I have read that the dispatcher module "can be used as a stateless load
>>> balancer, having no guarantee of fair distribution". However googling
>>> around I have seen that nevertheless can handle
>>> invites,progress,ringing,cancels,byes etc. correctly.
>>>
>>> Question #1:
>>> Can I use e.g.
>>>   if (method=="REGISTER" || method=="INVITE" || method=="CANCEL") {
>>>     ds_select_dst("2", "0");
>>>     forward();
>>>   }
>>> for this kind of routing in order to ensure that all messages belonging
>>> to one call are always routed to the same destination?
>>>   
>>>       
>> yes, that is correct, but include all methods (like ACK, BYE, UPDATE,
>> PRACK, REFER, etc)
>>     
>>> Question #2:
>>> When using dispatcher with a database table for the proxies and gateways
>>> we would like to disable certain proxies on the fly via the database by
>>> an external application. Do we have to reload parts of OpenSIPS in order
>>> to make the dispatcher module become aware of it? How can we do that?
>>>   
>>>       
>> just use the "ds_set_state" MI command to enable/disable destinations
>> at runtime - see
>> http://www.opensips.org/html/docs/modules/1.6.x/dispatcher.html#id262730.
>>
>> For more complex changes, use the "ds_reload" to reload the entire table.
>>     
>>> Question #3:
>>> We would like to send back "302 redirect" for Invites, which are coming
>>> from external gateways. Thus external gateways can directly communicate
>>> with the proxy. How can we use the information (hostname, port etc) from
>>> "ds_select_dst" in order to send back a 302 redirect message. I know it
>>> is somehow stored in an AVP, but I have no example how the get the host
>>> and port part out of it. Can you provide an example?
>>>   
>>>       
>> use ds_select_domain() to get the RURI changed and simply do a
>> sl_send_reply("302","Redirected"); -> RURI will be automatically
>> copied as Contact in 30x reply.
>>
>> Regards,
>> Bogdan
>>     
>>> Best regards
>>> Peter
>>>
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opensips.org
>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>
>>>   
>>>       
>>     
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>   


-- 
Bogdan-Andrei Iancu
OpenSIPS Bootcamp
20 - 24 September 2010, Frankfurt, Germany
www.voice-system.ro