4 Oct
2024
4 Oct
'24
1:20 p.m.
Looking at the code I see, that there is a check
https://github.com/kamailio/kamailio/blob/66fe6eb71e58a02222d1a2fb00f9a0cdb…
Yes, it's true, that call is sent to a same AOR, but "received"
parameter is different (cause phone is making "new" register from a
different port, meanwhile the old port is dead already)
Le 04/10/2024 à 10:28, Henning Westerholt a écrit :
Sure, it’s a workaround. It probably could be fixed in the
ts_append(..) function, or in one of the functions that its uses (like
from tm).
Cheers,
Henning
*From:*Ihor Olkhovskyi <igorolhovskiy(a)gmail.com>
*Sent:* Freitag, 4. Oktober 2024 10:26
*To:* Henning Westerholt <hw(a)gilawa.com>om>; Kamailio (SER) - Users
Mailing List <sr-users(a)lists.kamailio.org>
*Subject:* Re: [SR-Users] t_append_branches() and "dead" tcp connections
Henning ,
Yes, I did. But as I've said, in a really small number of cases it
does not help. As a drawback, too frequent TCP keepalives making
Android not close the app and it does not help either.
At the end, it's a workaround, not a "proper solution", I think.
Le 04/10/2024 à 10:14, Henning Westerholt a écrit :
Hello,
already tried to use short TCP keepalive intervals on a network
level? This way the dead connections should be detected and removed.
Cheers,
Henning
*From:*Ihor Olkhovskyi <igorolhovskiy(a)gmail.com>
<mailto:igorolhovskiy@gmail.com>
*Sent:* Freitag, 4. Oktober 2024 10:09
*To:* Henning Westerholt <hw(a)gilawa.com> <mailto:hw@gilawa.com>;
Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
<mailto:sr-users@lists.kamailio.org>
*Subject:* Re: [SR-Users] t_append_branches() and "dead" tcp
connections
Henning,
That's what I did for the moment, but sometimes, especially with
Android endpoints, I'm getting a situation where there is a "dead"
TCP connection, cause some devices not really taking care about
closing them properly. And on TCP timeout expiry time the device
is literally unreachable.
Le 04/10/2024 à 09:52, Henning Westerholt a écrit :
Hello Ihor,
what just about setting handle_lost_tcp to 1 to remove dead
TCP connection and to prevent this error?
Cheers,
Henning
*From:*Ihor Olkhovskyi via sr-users
<sr-users(a)lists.kamailio.org>
<mailto:sr-users@lists.kamailio.org>
*Sent:* Donnerstag, 3. Oktober 2024 21:04
*To:* Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org> <mailto:sr-users@lists.kamailio.org>
*Cc:* Ihor Olkhovskyi <igorolhovskiy(a)gmail.com>
<mailto:igorolhovskiy@gmail.com>
*Subject:* [SR-Users] t_append_branches() and "dead" tcp
connections
Hello,
Recently encountered an issue with tsilo (that is using
t_append_branches), but not sure found a root cause.
So, I have a call, but aparently there are some "dead" TCP
connections in a "location" table
modparam("usrloc", "handle_lost_tcp", 0)
On call initialtion, INVITE's are sent to "last seen"
location, but aparently there is no answer and I assume it's
in a state "trying to establish TCP connection"
Obviously, there is no "100 Trying" answer on any outgoing INVITE.
Than, a REGISTER comes from a contact, that is supposed to be
called.
Usual
ts_append("location", "$tu");
is called, but in the logs I see
[REGISTER] tm [t_append_branches.c:208]: t_append_branches():
failure to add branches (-1)
If there is an active TCP connection, branches are added as
expected. I'm getting this only in a case of trying to
establish a call to a "dead" TCP connection.
What am I missing here or it sounds like a bug?
--
Best regards,
Ihor (Igor)