[OpenSIPS-Users] Failed INVITE tcp_send

[Bogdan-Andrei Iancu]

Hi Brian,

This is something interesting - can you open a bug report on the tracker 
- just to keep a history of the report and of the troubleshooting:
          http://www.opensips.org/Development/Tracker

What is strange is that we are using also TLS and never bumped into this 
problem.

Thanks & Regards,
Bogdan

opensipslist at encambio.com wrote:
> Hello,
>
> An ven., déc 18, 2009, Bogdan-Andrei Iancu schrieb:
>   
>> opensipslist at encambio.com wrote:
>>     
>>>>> You may try to increase the number of tries to something higher -
>>>>> 3200, just to see if that is the problem:
>>>>>
>>>>>    see tls/tls_server.c , line 689
>>>>>       #define MAX_SSL_RETRIES 320
>>>>>
>>>>>           
>>>> This doesn't make sense to me. If 320 retries are attempted with no
>>>> write op success, then trying 3200 can't be the solution. Rather, it
>>>> must be that I have an error in the config script or some permission
>>>> problem no?
>>>>
>>>>         
>>> Sadly, the only thing I could do to solve the problem was to
>>> increase 320 as Bogdan suggested. I raised it to 3200, but
>>> surely there is a lower 'cieling' that would work. It leaves
>>> me with a somewhat sick feeling however, because this seems
>>> very hacky and probably only masks the symptom and leaves
>>> the real problem intact (which could surface again in some
>>> other form.)
>>>
>>>       
>> It is not really a hack :) .... i tend to think this number vary from OS 
>> to OS, from server to server .....like how slow the write ops take place 
>> - on some system is faster, on other is not.....
>>
>>     
> By the way, even when MAX_SSL_RETRIES is set to almost infinity, the
> same errors reappear when lowering the number of child processes.
> This could be a clue for whoever decides to look into this bug.
>
> In the current state of development, it seems the workaround is:
>
>   Increase MAX_SSL_RETRIES to almost infinity
>   Increase tcp_children to the number of UACs (not scalable)
>   Log how many SSL retries are really needed until success
>   Lower MAX_SSL_RETRIES from almost infinity to what is needed
>
> Does that sound right? Is this acceptable as far as scalability goes?
>
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>
>   


-- 
Bogdan-Andrei Iancu
www.voice-system.ro