[Kamailio-Users] lifetime and TCP connection timeout

[Aymeric Moizard]

On Fri, 23 Oct 2009, Klaus Darilion wrote:

> Hi Aymeric!
>
> I justed tested on one of my proxies (kamailio 1.5) and with the default 
> setting (120s) it closes TCP connection always after 131 seconds - strange.
>
> If I set to 30, the connection will be closed after 41 seconds.
> If I set to 300, the connection will be closed after 311 seconds.

modparam("rtimer", "timer", "name=tst;interval=300;mode=1;")

Using this, my timer is called every 75 seconds ;(

My linux is a standar ovh kernel "2.6.28.4-xxxx-std-ipv4-32 #2 SMP". I 
already got issue with the SIP NAT module statically linked into 
the kernel that I couldn't remove... and once more, the kernel...

I will try another kernel after some backup.

> Looks like in my case there are always 11 seconds added (maybe some other 
> timeouts before the connection enters the "idle" state in the TCP handler).
>
> Anyway, that does not answer the problems you are experiencing.

Right. But I'm getting closer!

Aymeric MOIZARD / ANTISIP
amsip - http://www.antisip.com
osip2 - http://www.osip.org
eXosip2 - http://savannah.nongnu.org/projects/exosip/



> regards
> klaus
>
> Klaus Darilion schrieb:
>> 
>> 
>> Aymeric Moizard schrieb:
>>> 
>>> Some additionnal information:
>>> 
>>> I tried several value for tcp_connection_lifetime!
>>> 
>>> tcp_connection_lifetime = 120  -> close TCP conn after 50 seconds
>>> tcp_connection_lifetime = 300  -> close TCP conn after 90 seconds
>>> tcp_connection_lifetime = 600  -> close TCP conn after 160 seconds
>>> 
>>> Do I have "tick" issue? Any idea?
>> 
>> Are you using a non-standard OS? kernel? hardware?
>> 
>> Is the clock running correct on your OS?
>> 
>>> I think I'm close to find either a bug or an issue with my kernel?
>>> 
>>> I got a timer running a route[] for statistics computation, in
>>> case that would change something?
>> 
>> Is the timer route executed correctly or is it also called too often?
>> 
>> klaus
>> 
>>> I'm using rtimer module: could this have an impact?
>>> 
>>> Aymeric MOIZARD / ANTISIP
>>> amsip - http://www.antisip.com
>>> osip2 - http://www.osip.org
>>> eXosip2 - http://savannah.nongnu.org/projects/exosip/
>>> 
>>> 
>>> On Fri, 23 Oct 2009, Klaus Darilion wrote:
>>> 
>>>> Hi Aymeric!
>>>> 
>>>> Kamailio does not support SIP outbound. It should close TCP connection 
>>>> after the timeout. The timeout can be specified with 
>>>> http://www.kamailio.org/dokuwiki/doku.php/core-cookbook:1.5.x#tcp_connection_lifetime 
>>>> 
>>>> So, do I get it right that this does not work (TCP connection closed 
>>>> after 50 seconds by Kamailio although the default value is 120 seconds)?
>>>> 
>>>> (For outbound support probably the default value should be increased).
>>>> 
>>>> Further, usually the lifetime should be extended to the value of the 
>>>> registration expiration. This can be done by using
>>>> http://www.kamailio.org/docs/modules/1.5.x/registrar.html#id2477171
>>>> 
>>>> regards
>>>> klaus
>>>> 
>>>> Aymeric Moizard schrieb:
>>>>> 
>>>>> 
>>>>> On Fri, 23 Oct 2009, Iñaki Baz Castillo wrote:
>>>>> 
>>>>>> El Viernes, 23 de Octubre de 2009, Aymeric Moizard escribió:
>>>>>>> Hi all,
>>>>>>> 
>>>>>>> I'm working on improving my TCP support and go some issue
>>>>>>> related to TCP connections and lifetime/persistence.
>>>>>> 
>>>>>> Are you doing that in Kamailio's TM module?
>>>>>> Please take into account that for Kamailio next version SIP-Router TM 
>>>>>> module
>>>>>> will be used, which has received LOT of love for TCP (i.e: non 
>>>>>> blocking).
>>>>> 
>>>>> Sorry that I missed to put the version of kamailio: I'm using branch 1.5
>>>>> svnversion gives 5868M
>>>>> ChangeLog last line is:
>>>>> ===================== 2009-04-29 Kamailio v1.5.1 released 
>>>>> =====================
>>>>> 
>>>>> Seems like you are misunderstooding me: I'm working on my SIP stacks 
>>>>> against kamailio with no change. I'm not working "on" the tm module.
>>>>> 
>>>>> Tks,
>>>>> Aymeric MOIZARD / ANTISIP
>>>>> amsip - http://www.antisip.com
>>>>> osip2 - http://www.osip.org
>>>>> eXosip2 - http://savannah.nongnu.org/projects/exosip/
>>>>> 
>>>>> 
>>>>>> -- 
>>>>>> Iñaki Baz Castillo <ibc at aliax.net>
>>>>>> 
>>>>>> _______________________________________________
>>>>>> Kamailio (OpenSER) - Users mailing list
>>>>>> Users at lists.kamailio.org
>>>>>> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
>>>>>> http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
>>>>>> 
>>>>> 
>>>>> ------------------------------------------------------------------------ 
>>>>> 
>>>>> _______________________________________________
>>>>> Kamailio (OpenSER) - Users mailing list
>>>>> Users at lists.kamailio.org
>>>>> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
>>>>> http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
>>>> 
>> 
>> _______________________________________________
>> Kamailio (OpenSER) - Users mailing list
>> Users at lists.kamailio.org
>> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
>> http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
>