[SR-Users] strange --dialog in delete state is too old-- log line managing dialog hashes

Mon Nov 13 09:42:38 CET 2017

Hello,

I pushed two patches to dialog module few days ago, can you try with
that version (or with those patches backported to your version)?

Cheers,
Daniel

On 09.11.17 18:50, David Escartín wrote:
> hello Daniel
>
> I might think they were not, at least i cannot see dialogs being
> created with the same id and entry hash values in the previous hours
> to the kamailio reset, but i'm not sure. I dont know if maybe they
> could be some "lost" dialogs with more than 2 hours lifetime for some
> strange reason, but i could not check the dailog profile list live
> because i got a "reply too big" output using the kamcmd rpc command.
> I guess i should increase  binrpc_max_body_size ?
>
> I can try to remove traffic from the server and see if after 2 hours i
> have any remaining dialog. I don't think there would be any because i
> checked generally other times that the number of dialogs go to 0 after
> a while (2 hours or so) when i remove traffic from a kamailio
> instance. But i can check it anyway.
>
> i will let you know
>
> best regards
> david
>
>
>
> El 08/11/17 a las 08:40, Daniel-Constantin Mierla escribió:
>> Hello,
>>
>>
>> On 08.11.17 07:23, David Escartín wrote:
>>> Hello Daniel
>>>
>>> sorry about that.
>> no worries, it was more for the future to keep a conversation in a
>> single place, if it is not some generic announcement or similar ...
>>> yes, if we make a restart, after a while (not fixed time some times
>>> minutes, some times 2 hours),  we start to see those types of messages
>> Do you know if all these dialogs were active at the last restart? Or new
>> dialogs after restart expose the same issue?
>>
>> Cheers,
>> Daniel
>>
>>> i attach you the sip messages of the call of the logs in the first mail
>>> the INVITE receiver is the Kamailio instance.
>>>
>>> thanks a lot and sorry again about the 2 email accounts
>>> david
>>>
>>>
>>> El 07/11/17 a las 18:40, Daniel-Constantin Mierla escribió:
>>>> Hello,
>>>>
>>>> first: no need to post on both sr-users and sr-dev, it makes it
>>>> hard to
>>>> follow up if people answer on different lists.
>>>>
>>>> If it is about a stable release, you can use the sr-users, if it is
>>>> about devel version, you can use sr-dev. Of course, if it is a bug,
>>>> you
>>>> can open an issue on:
>>>>
>>>>     - https://github.com/kamailio/kamailio/issues
>>>>
>>>> Now, back to the message itself -- have you done a recent restart
>>>> before
>>>> this situation is exposed? Do you capture the traffic in your network?
>>>> If yes, can you extract the sip packets for one of these calls and
>>>> send
>>>> them over to me?
>>>>
>>>> Cheers,
>>>> Daniel
>>>>
>>>>
>>>> On 07.11.17 16:30, David Escartín wrote:
>>>>> hello all
>>>>>
>>>>> recently we are seeing some weird messages handling with dialogs in
>>>>> Kamailio version 5.0
>>>>> we sometimes are seeing messages like
>>>>> /usr/local/kamailio/sbin/kamailio[15372]: NOTICE: dialog
>>>>> [dlg_hash.c:249]: dlg_clean_run(): dialog in delete state is too old
>>>>> (0x7fa65445c850 ref 3)
>>>>> /usr/local/kamailio/sbin/kamailio[15372]: NOTICE: dialog
>>>>> [dlg_hash.c:235]: dlg_clean_run(): dialog in early state is too old
>>>>> (0x7fa652d57110 ref 1)
>>>>>
>>>>> we increased the debug description adding some lines to the dialog
>>>>> module code so we could track the calls of the calls that these
>>>>> messages belong to, and we could see that those messages appeared in
>>>>> calls just released at that moment, for example:
>>>>>
>>>>> <134>Nov  4 11:21:38 localhost
>>>>> /usr/local/kamailio/sbin/kamailio[4108]: INFO: mad-localhost-1 Call
>>>>> 97980 / Call-ID 1409565771_82382809 at 195.219.240.46: Creating dialog
>>>>> [8043:21772] with hash id 21772 and hash entry 8043
>>>>> <134>Nov  4 11:21:38 localhost
>>>>> /usr/local/kamailio/sbin/kamailio[4106]: INFO: mad-localhost-1 Call
>>>>> 97980 / Call-ID 1409565771_82382809 at 195.219.240.46: Status 100, 6610
>>>>> <134>Nov  4 11:21:39 localhost
>>>>> /usr/local/kamailio/sbin/kamailio[4111]: INFO: mad-localhost-1 Call
>>>>> 97980 / Call-ID 1409565771_82382809 at 195.219.240.46: CANCEL
>>>>> received in
>>>>> A-Leg, relaying downstream
>>>>> <134>Nov  4 11:21:39 localhost
>>>>> /usr/local/kamailio/sbin/kamailio[4112]: INFO: mad-localhost-1 Call
>>>>> 97980 / Call-ID 1409565771_82382809 at 195.219.240.46: Status 487, 6610
>>>>> <133>Nov  4 11:21:39 localhost
>>>>> /usr/local/kamailio/sbin/kamailio[4139]: NOTICE: dialog
>>>>> [dlg_hash.c:251]: dlg_clean_run(): dialog in delete state is too old
>>>>> (0x7fa0c02a6870 ref 3) with callid
>>>>> '1409565771_82382809 at 195.219.240.46'
>>>>> <129>Nov  4 11:21:39 mad-proxy-inout-1
>>>>> /usr/local/kamailio/sbin/kamailio[4112]: ALERT: dialog
>>>>> [dlg_handlers.c:1715]: dlg_run_event_route(): after event route -
>>>>> dialog not found [8043:21772] (1/5) (0x7fa0c02a6870) with callid
>>>>> '1409565771_82382809 at 195.219.240.46'
>>>>>
>>>>> we printed the dialog id and entry hash values and we can see there
>>>>> are no other calls creating same values in the previous hours, or
>>>>> using same memory allocation, or same callid, so it seems like there
>>>>> was some kind of strange issue with the dialog timers....¿?
>>>>> By the way, this is happening only few times (80-100 times) a day
>>>>> having many thousands of calls, so it's quite difficult for us to
>>>>> duplicate, we couldn't do it until now.
>>>>> We also tried to use the timer_procs 0 or 1 to use a different proc
>>>>> timer but seems the issue happens in both scenarios.
>>>>>
>>>>> The configuration change we made and seems it was done when these
>>>>> messages started to appear is to use dialog event_route when ended
>>>>> and
>>>>> failed to do some stuff there managing some dialog variables.
>>>>> Does ti make any sense that attempting to use those variables could
>>>>> cause these behaviour?
>>>>> Do you have any idea about it could be or how we can check it deeper?
>>>>>
>>>>> thanks a lot and regards
>>>>> david escartin
>>>>>
>>>>> _______________________________________________
>>>>> Kamailio (SER) - Users Mailing List
>>>>> sr-users at lists.kamailio.org
>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>

-- 
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training, Nov 13-15, 2017, in Berlin - www.asipto.com
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