[SR-Users] Catching websocket / TCP errors

Marrold kamailio at marrold.co.uk
Tue Oct 5 18:01:19 CEST 2021


Hi Arsen

That looks perfect, except we're still using 4.3.X on some of our proxies (
I should have mentioned, sorry) . We plan on upgrading very soon...

Thanks


On Tue, Oct 5, 2021 at 4:58 PM Arsen Semenov <arsperger at gmail.com> wrote:

> Hi,
> have you tried this param?
>
> https://kamailio.org/docs/modules/devel/modules/usrloc.html#usrloc.p.db_clean_tcp
>
> On Tue, Oct 5, 2021 at 8:49 PM Marrold <kamailio at marrold.co.uk> wrote:
>
>> Hi,
>>
>> We're currently implementing WebRTC (SIP over a websocket) on our
>> Kamailio proxies and we're experiencing a minor issue after a restart.
>>
>> We write all USRLOC entries to a shared database to implement HA. These
>> are then loaded on a restart, which leaves us with entries with TCP
>> connections that no longer exist. When a call attempt is made the proxy
>> can't find the connection ID and immediately rejects the call with a "500
>> No error (2/SL)" -
>>
>> Oct  5 15:38:24 proxy-01 /sbin/kamailio[32087]: WARNING: <core>
>> [core/msg_translator.c:2861]: via_builder(): TCP/TLS connection (id: 0) for
>> WebSocket could not be found
>> Oct  5 15:38:24 proxy-01 /sbin/kamailio[32087]: ERROR: <core>
>> [core/msg_translator.c:2038]: build_req_buf_from_sip_req(): could not
>> create Via header
>> Oct  5 15:38:24 proxy-01 /sbin/kamailio[32087]: ERROR: tm [t_fwd.c:479]:
>> prepare_new_uac(): could not build request
>> Oct  5 15:38:24 proxy-01 /sbin/kamailio[32087]: ERROR: tm [t_fwd.c:1759]:
>> t_forward_nonack(): failure to add branches
>> Oct  5 15:38:24 proxy-01 /sbin/kamailio[32087]: ERROR: sl
>> [sl_funcs.c:414]: sl_reply_error(): stateless error reply used: No error
>> (2/SL)
>>
>> How can we catch this error to avoid terminating the call prematurely? Or
>> should we flush these TCP connections on start up?
>>
>> Thanks
>> Matthew
>>
>> __________________________________________________________
>> Kamailio - Users Mailing List - Non Commercial Discussions
>>   * sr-users at lists.kamailio.org
>> Important: keep the mailing list in the recipients, do not reply only to
>> the sender!
>> Edit mailing list options or unsubscribe:
>>   * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>
>
>
> --
> Arsen Semenov
>
> __________________________________________________________
> Kamailio - Users Mailing List - Non Commercial Discussions
>   * sr-users at lists.kamailio.org
> Important: keep the mailing list in the recipients, do not reply only to
> the sender!
> Edit mailing list options or unsubscribe:
>   * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-users/attachments/20211005/20f4972e/attachment.htm>


More information about the sr-users mailing list