[Kamailio-Devel] [Kamailio-Users] Kamailio 1.4.2 : Weird Retransmission

[Daniel-Constantin Mierla]

Hello,

On 12/09/08 20:41, Aurelien Grimaud wrote:
> Daniel-Constantin Mierla a écrit :
>   
>> On 12/09/08 18:52, Aurelien Grimaud wrote:
>>     
>>> I am able to reproduce it with 1 call / second without my module on 
>>> BYE requests.
>>> here are traces.
>>>       
>> there is a race (at least), indeed. It happens when there is fast 
>> reply. I am going to send you a patch soon for testing, you use svn 
>> branch 1.4 or the tarball?
>>     
> Great, I use the kamailio-1.4.2-notls tarball.
> But I can test any SVN branch / trunk if you wish.
>   
can you test the attached patch with SVN trunk? Let me know the results. 
Pay attention to see if breaks something else, not just if fixes the 
reported issue. I let there some debug messages, to help 
troubleshooting, if the fix is ok, I'll remove them before committing.

Thanks,
Daniel
 
> Aurelien
>
>   
>> Cheers,
>> Daniel
>>
>>
>>     
>>> ps: I added the ms on Logs.
>>>
>>> Aurelien
>>>
>>> Daniel-Constantin Mierla a écrit :
>>>       
>>>> On 12/09/08 17:56, Klaus Darilion wrote:
>>>>  
>>>>         
>>>>> Daniel-Constantin Mierla schrieb:
>>>>>     
>>>>>           
>>>>>> Hello,
>>>>>>
>>>>>> On 12/09/08 17:31, Klaus Darilion wrote:
>>>>>>         
>>>>>>             
>>>>>>> Aurelien Grimaud schrieb:
>>>>>>>  
>>>>>>>             
>>>>>>>               
>>>>>>>> Fair enough.
>>>>>>>> If no one already experienced this strange behavior, it should 
>>>>>>>> be my module ...
>>>>>>>> I'll try to make it again without my module.
>>>>>>>>                       
>>>>>>>>                 
>>>>>>> See my other email.
>>>>>>>
>>>>>>>  
>>>>>>>             
>>>>>>>               
>>>>>>>> However, in the log, after the 200 response, there is a 
>>>>>>>> cleanup_uac_timers: RETR/FR timers reset.
>>>>>>>> So those timers are cleared.
>>>>>>>>                       
>>>>>>>>                 
>>>>>>> But the problem is, that the process which handles the INVITE has 
>>>>>>> not finished yet and those (re)SETS the timer.
>>>>>>>
>>>>>>> @Daniel - Have you investigated the problem?
>>>>>>>                 
>>>>>>>               
>>>>>> so this is the half of the issue reported via:
>>>>>> https://sourceforge.net/tracker/index.php?func=detail&aid=2105813&group_id=139143&atid=743020 
>>>>>>           
>>>>>>             
>>>>> yes.
>>>>>
>>>>> Can it be related to other modules which register callbacks (e.g. 
>>>>> pua module or Aurelien's module?
>>>>>       
>>>>>           
>>>> what is the requests/second rate when the issue appears?
>>>>
>>>> At first look, between sending and setting retransmission timer, 
>>>> there is no much processing for the request. The callback executed 
>>>> there is in use by siptrace, are you using this module?
>>>>
>>>> Cheers,
>>>> Daniel
>>>>      
>>>>         
>>>>>> This one got lost, but as I started to fix the other half 
>>>>>> (replying using proper mode to do retransmission), will 
>>>>>> investigate this as well ...
>>>>>>
>>>>>> Cheers,
>>>>>> Daniel
>>>>>>             
>
>
>
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>   

-- 
Daniel-Constantin Mierla
http://www.asipto.com

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