[OpenSIPS-Users] Question about using load balancing (dispatcher) within failure_route

[Woody Dickson]

Hi Bogdan,

Thank you for your prompt reply.

Rightnow, I can hard code ONE B2BUA in the failure_route, but I would rather
have multiple B2BUA dispatched in a round robin fashion when the
failure_route is hit and have the IPs extracted from DB.

Is there any possible workaround that can resolve this problem for the short
term?


Thanks alot.

Woody

On Mon, Oct 20, 2008 at 3:46 PM, Bogdan-Andrei Iancu <bogdan at voice-system.ro
> wrote:

> Hi Woody,
>
> This is related to a bug I recently found in the dispatcher module - the
> ds_next_dst() function, even if it should set only the destination URI, it
> internally creates a branch - so, you will end up with 2 branches actually :
>   1) first, with the original URI and the DST from dispatcher
>   2) second, with the URI from script (rewrite) and no dst;
>
> Regarding the failover support, you need, to set some params, like:
>   dst_avp -
> http://www.opensips.org/html/docs/modules/devel/dispatcher.html#id2529512
>   grp_avp -
> http://www.opensips.org/html/docs/modules/devel/dispatcher.html#id2533853
>   cnt_avp -
> http://www.opensips.org/html/docs/modules/devel/dispatcher.html#id2509422
>
> Regards,
> Bogdan
>
> Woody Dickson wrote:
>
>> Hello,
>>
>> I have my dispatcher setup fine for my INVITE so Opensips can now
>> distribute calls to one of the two B2BUA.  What I would also like to do is
>> that when 486 is recevied, Opensips can branch another route back to one of
>> the two B2BUA which will play the voicemail.   I tried:
>> ds_select_dst("1", "4");
>> ds_next_dst();
>> rewritehostport("192.168.1.101:5070 <http://192.168.1.101:5070>");
>>
>> only rewritehostport works, but I don't want to hard code the host and
>> port inside the config script.  If I use ds_next_dst(), I am getting
>> "WARNING:dispatcher:ds_next_dst: failover support disabled".  Does anyone
>> know how to resolve this problem?
>>
>> Here is my failure_route block:
>>
>> failure_route[1] {
>>
>>       if (t_was_cancelled()) {
>>            exit;
>>    };
>>    if (t_check_status("486")) {
>>           revert_uri();
>>              prefix("b");
>>              xlog("L_ERR","Stepped into the 486 ruri=<$ru>");
>>             #ds_select_dst("1", "4");
>>            ds_next_dst();
>>        #rewritehostport("192.168.1.131:5070 <http://192.168.1.131:5070
>> >");
>>             append_branch();
>>             route(1);
>>                    exit;
>>    };
>>
>>
>> Thanks in advance for all your help.
>>
>> Regards,
>> Woody
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> Users mailing list
>> Users at lists.opensips.org
>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.opensips.org/pipermail/users/attachments/20081020/b3205054/attachment.htm