[OpenSIPS-Users] Gateway failover special setup (t_check_status question)

[Max Mühlbronner]

Hi,



Actually this is very similar to what i tried before. But i just assumed 
that it is not being executed (no 408 in the trace, and no log entries 
at that moment). Now i checked again and i can see several xlog entries. 
(408 gateway timeout...) , just wasn't patient enough.


         if (use_next_gw()) {
                 if( t_check_status("444") || !goes_to_gw("1") ) {
                         t_on_failure("2");
                         t_relay("0x08");
                         exit;
                 }

                 #Timeout fix #3814
                 if (t_check_status("408") && t_local_replied("all")) {
                         xlog("L_ERR", "408 gateway timeout fix test - 
rU: $rU ci: $ci");
                 }

...

         # end of gw list / failover
         t_reply("503", "Service Unavailable");
         exit;



Thanks very much, i will try but this now.


BR

Max M.


On 20.01.2017 13:57, Bogdan-Andrei Iancu wrote:
> Hi Max,
>
> Something like:
>
>      if( (t_check_status("444") || (t_check_status("408") && 
> t_local_replied("all")) ) || !goes_to_gw("1") ) {
>
> Do failover if 444 reply or if 408 without any reply received 
> (internal 408).
>
> Regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developer
> http://www.opensips-solutions.com
>
> On 01/20/2017 01:21 PM, Max Mühlbronner wrote:
>> Hi,
>>
>>
>> my scenario is a special setup where we are checking for the reply 
>> code (t_check_status) and only do a failover to the next gateway when 
>> there is a 444 reply or gateway type is not "1".
>>
>> ...
>>
>>         if (use_next_gw()) {
>>                 if( t_check_status("444") || !goes_to_gw("1") ) {
>>                         t_on_failure("2");
>>                         t_relay();
>>                         exit;
>>                 }
>>
>>
>> The problem is, there are multiple gateways in a carrier/gatewaylist 
>> (gateway type 1) which are not responding (t1 timer hits and invite 
>> is re-transmitted) and there is no failover after the first gateway 
>> anymore. Is there anything i am missing, is it even possible to do 
>> failover only for the 444 reply while at the same time still doing a 
>> failover in case of Timeout-based failover ? (t1/t2 timers)
>>
>>
>> I didn't try yet, but is something like !t_check_status("\d") 
>> feasible? E.g. doing a failover if there is no t_check_status 
>> (checking regular expression for !digits?) but i guess it does not 
>> work that way?
>>
>>
>>         if (use_next_gw()) {
>>                 if( t_check_status("444") || !goes_to_gw("1") ) {
>>                         t_on_failure("2");
>>                         t_relay();
>>                         exit;
>>                 }
>>
>>                 if(!t_check_status("\d")) {
>>
>>                         t_on_failure("2");
>>                         t_relay();
>>                         exit;
>>
>>                  }
>>
>>     ...
>>
>>
>>
>> BR
>>
>


-- 
Max Mühlbronner
42com Telecommunication GmbH
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E-Mail: mm at 42com.com
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