Re: [sr-dev] uac dialog callback and kamailio restarts

Hello, well, to be clear, I do not know if it should work for uac, I haven't used replace from/to with dialog so far. But I remember I saw in the past some code/discussions related to callbacks at startup when loading database records from dialog table. Cheers, Daniel On 10.04.19 09:05, Henning Westerholt wrote: > Hi Daniel, > > thank you, will have a look to the cnxcc module, good hint. Good to know > that it should working even after a restart. > > Cheers, > > Henning > > Am 10.04.19 um 08:56 schrieb Daniel-Constantin Mierla: >> Hello, >> >> I had in mind to check the code and be sure, but I forgot about it ... >> so, I think there is already a callback function that is executed by >> dialog module when loading records from database. Maybe uac module is >> not registering itself for it, or does it too late. Just look at what >> callbacks dialog exports, eventually see cnxcc module to see if it does >> something on this regard -- it depends on dialog and I expect it works >> also after restarting. >> >> Cheers, >> Daniel >> >> On 10.04.19 08:41, Henning Westerholt wrote: >>> Hello, >>> >>> any comments on this? >>> >>> Thanks and regards, >>> >>> Henning >>> >>> Am 05.04.19 um 17:03 schrieb Henning Westerholt: >>>> Hello, >>>> >>>> I am working right now on another difficult topic related to the usage >>>> of uac dialog callbacks for the usual replace from/to header logic >>>> after a kamailio restart. >>>> >>>> The uac/dialog module combination works just fine - but after a >>>> kamailio restart the dialog callback information is lost. So this >>>> means that for already established dialogs no from/to replacement >>>> operations are done. This causes errors later on during BYE or >>>> Re-INVITE signalization. >>>> >>>> I verified this with debug logging and can easily test this on a test >>>> system. >>>> >>>> One obvious workaround is of course not use the dialog module to store >>>> the data inside dialog variables. >>>> >>>> An approach to work on this problem would be to store the uac callback >>>> in the dialog table(s) as well, and then during kamailio startup use >>>> this to re-install the uac callback. >>>> >>>> Does this approach sounds feasible? Any other ideas how to tackle this >>>> issue?