[SR-Users] 500 Forking capacity exceeded (12/SL)

[Jorj Bauer]

I believe a couple of bits are reserved in the code, actually. I think 30 is the maximum that's safe (and that's what we're using).

-- Jorj


On Mar 7, 2014, at 10:36 AM, Camila Troncoso <ctroncoso at redvoiss.net>
 wrote:

> Jorj,
> 
> Do you mean that the branches are represented each one in one bit, so 32
> bit number is a max of 32 branches?
> And you recommend to use value 30, leaving 2 bit reserved?
> 
> Regards,
> 
> Camila
> 
> 
> -----Mensaje original-----
> De: sr-users-bounces at lists.sip-router.org
> [mailto:sr-users-bounces at lists.sip-router.org] En nombre de Jorj Bauer
> Enviado el: viernes, 07 de marzo de 2014 11:23
> Para: Kamailio (SER) - Users Mailing List
> Asunto: Re: [SR-Users] 500 Forking capacity exceeded (12/SL)
> 
> Sadly, the branches are tracked in a 32-bit number, so you can't make it
> to 40. (We use 30 at Penn, having found a couple bits reserved.)
> 
> We've done some preliminary work trying to migrate this to a 64-bit, but
> it's not complete, and we're not actively working on it any longer.
> 
> -- Jorj
> 
> 
> On Mar 7, 2014, at 8:38 AM, Camila Troncoso <ctroncoso at redvoiss.net>
> wrote:
> 
>> Juha,
>> 
>> I tried increasing the number of MAX BRANCHES, but when I compiled and
>> restarted kamailio it gave this error:
>> 
>> tm [tm.c:744]: Too many max UACs for UAC branch_bm_t bitmap: 40
>> ERROR: <core> [sr_module.c:932]: init_mod(): Error while initializing
>> module tm (/usr/local/lib64/kamailio/modules/tm.so)
>> 
>> Then I had to change it to 24 MAX BRANCHES , and kamailio started ok.
>> 
>> Is there a limit of MAX BRANCHES ? I need to increase the value near
>> 40 branches.
>> 
>> Regards,
>> 
>> Camila
>> 
>> 
>> 
>> -----Mensaje original-----
>> De: sr-users-bounces at lists.sip-router.org
>> [mailto:sr-users-bounces at lists.sip-router.org] En nombre de Juha
>> Heinanen Enviado el: sábado, 22 de febrero de 2014 18:16
>> Para: Kamailio (SER) - Users Mailing List
>> Asunto: [SR-Users] 500 Forking capacity exceeded (12/SL)
>> 
>> Camila Troncoso writes:
>> 
>>> If one gateway is full, busy, down or answers with any failed
>>> response to LCR , I jump to the next gateway in the list.  I´m
>>> presenting the problem that its stops jumping after 12 gateways and
>>> returns the message 500 Forking capacity exceeded (12/SL). I need to
>>> increase this limit , so all the gateways in the list  give the call a
> try.
>> 
>> try increasing
>> 
>> config.h:#define MAX_BRANCHES    	12	/*!< maximum number of
>> branches per transaction */
>> 
>> -- juha
>> 
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> 
> 
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