multi netwotk interface kamailio stops processing packets in one of it's network interfaces although keeps processing in the others
16 Sep
2020
16 Sep
'20
8:18 p.m.
Hello everyone.
I've started to have an issue with a kamailio 4.4 instance listening on
multiple network interfaces where it stops processing SIP on one of it's
network interfaces but still continues to work fine on the others. If I
restart kamailio everything starts working fine again.
I'm using the default 'children=8' and one of my guesses on why this could
be happening is that the number of childs processing couldn't be enough. Do
you remember anything else on an issue like this where I should be looking?
Thanks.
--
Nuno Miguel Reis
Departamento de Engenharia Informática
Faculdade de Ciências e Tecnologia
Universidade de Coimbra
16 Sep
16 Sep
8:22 p.m.
Hello Nuno,
is this from UDP or TCP traffic? Do you get some error message when its “stuck” from the
processes in the log?
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: sr-users <sr-users-bounces(a)lists.kamailio.org> On Behalf Of Nuno Miguel Reis
Sent: Wednesday, September 16, 2020 8:18 PM
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
Subject: [SR-Users] multi netwotk interface kamailio stops processing packets in one of
it's network interfaces although keeps processing in the others
Hello everyone.
I've started to have an issue with a kamailio 4.4 instance listening on multiple
network interfaces where it stops processing SIP on one of it's network interfaces but
still continues to work fine on the others. If I restart kamailio everything starts
working fine again.
I'm using the default 'children=8' and one of my guesses on why this could be
happening is that the number of childs processing couldn't be enough. Do you remember
anything else on an issue like this where I should be looking?
Thanks.
--
Nuno Miguel Reis
Departamento de Engenharia Informática
Faculdade de Ciências e Tecnologia
Universidade de Coimbra
17 Sep
17 Sep
2:19 a.m.
Hi Henning.
When it starts to happen it affects all kinds of transport (UDP, TCP, TLS),
initially I thought it could be UDP fragmentation as well but that is not
the case.
When in this stall scenario the log does not emit anything useful it is as
if there was no traffic although I'm able to see the SIP coming in with
tcpdump. In my network scenario I have 2 internet faced interfaces where
kamailio listens on port 5060 from 2 different carriers and when the
"stall" starts in on of this interfaces I still can do everything on the
other interface like when for instance an extension doesn't REGISTER when
the SIP packet comes into the stalled interface, if I change the outbound
proxy on the extension endpoint to be the other public interface from the
other carrier the REGISTER comes in to kamailio and it's processed without
issues.
Any other thoughts?
--
Nuno Miguel Reis
Departamento de Engenharia Informática
Faculdade de Ciências e Tecnologia
Universidade de Coimbra
On Wed, Sep 16, 2020 at 7:22 PM Henning Westerholt <hw(a)skalatan.de> wrote:
Hello Nuno,
is this from UDP or TCP traffic? Do you get some error message when its
“stuck” from the processes in the log?
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com
*From:* sr-users <sr-users-bounces(a)lists.kamailio.org> *On Behalf Of *Nuno
Miguel Reis
*Sent:* Wednesday, September 16, 2020 8:18 PM
*To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
*Subject:* [SR-Users] multi netwotk interface kamailio stops processing
packets in one of it's network interfaces although keeps processing in the
others
Hello everyone.
I've started to have an issue with a kamailio 4.4 instance listening on
multiple network interfaces where it stops processing SIP on one of it's
network interfaces but still continues to work fine on the others. If I
restart kamailio everything starts working fine again.
I'm using the default 'children=8' and one of my guesses on why this could
be happening is that the number of childs processing couldn't be enough. Do
you remember anything else on an issue like this where I should be looking?
Thanks.
--
Nuno Miguel Reis
Departamento de Engenharia Informática
Faculdade de Ciências e Tecnologia
Universidade de Coimbra
16 Sep
16 Sep
8:25 p.m.
On Wed, 16. Sep 2020 at 21:19, Nuno Miguel Reis <nmreis(a)student.dei.uc.pt>
wrote:
Hello everyone.
I've started to have an issue with a kamailio 4.4 instance listening on
multiple network interfaces where it stops processing SIP on one of it's
network interfaces but still continues to work fine on the others. If I
restart kamailio everything starts working fine again.
I'm using the default 'children=8' and one of my guesses on why this could
be happening is that the number of childs processing couldn't be enough. Do
you remember anything else on an issue like this where I should be looking?
Thanks.
--
Nuno Miguel Reis
Departamento de Engenharia Informática
Faculdade de
Ciências e Tecnologia
Universidade de Coimbra
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users(a)lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
--
Jurijs
8:28 p.m.
Hi Nuno,
Insufficient child processes might lead to a slow-down of processing,
but not a complete stall. It sounds like traffic coming in on one
particular interface is leading to pathological database queries or API
calls which do not occur for other traffic on other interfaces, perhaps?
-- Alex
On 9/16/20 2:18 PM, Nuno Miguel Reis wrote:
Hello everyone.
I've started to have an issue with a kamailio 4.4 instance listening on
multiple network interfaces where it stops processing SIP on one of it's
network interfaces but still continues to work fine on the others. If I
restart kamailio everything starts working fine again.
I'm using the default 'children=8' and one of my guesses on why this
could be happening is that the number of childs processing couldn't be
enough. Do you remember anything else on an issue like this where I
should be looking?
Thanks.
--
Nuno Miguel Reis
Departamento de Engenharia Informática
Faculdade de Ciências e Tecnologia
Universidade de Coimbra
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users(a)lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
--
Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
17 Sep
17 Sep
2:26 a.m.
Hi Alex thanks for the feedback.
In my network scenario I have 2 internet faced interfaces where kamailio
listens on port 5060 from 2 different carriers and when the "stall" starts
in on of this interfaces (in my setup probably more than 80% of the SIP
traffic comes in through the interface that stalls) I still can do
everything on the other interface (where the remaining ~20% of the SIP
traffic is) like when for instance an extension doesn't REGISTER when the
SIP packet comes into the stalled interface, if I change the outbound proxy
on the extension endpoint to be the other public interface from the other
carrier the REGISTER comes in to kamailio and it's processed without issues.
So the kamailio path in kamailio cfg file is the same for SIP traffic in
both interfaces but for some reason starts to stall in one of them.
Any ideas on how to troubleshoot this better?
--
Nuno Miguel Reis
Departamento de Engenharia Informática
Faculdade de Ciências e Tecnologia
Universidade de Coimbra
On Wed, Sep 16, 2020 at 7:28 PM Alex Balashov <abalashov(a)evaristesys.com>
wrote:
Hi Nuno,
Insufficient child processes might lead to a slow-down of processing,
but not a complete stall. It sounds like traffic coming in on one
particular interface is leading to pathological database queries or API
calls which do not occur for other traffic on other interfaces, perhaps?
-- Alex
On 9/16/20 2:18 PM, Nuno Miguel Reis wrote:
Hello everyone.
I've started to have an issue with a kamailio 4.4 instance listening on
multiple network interfaces where it stops processing SIP on one of it's
network interfaces but still continues to work fine on the others. If I
restart kamailio everything starts working fine again.
I'm using the default 'children=8' and one of my guesses on why this
could be happening is that the number of childs processing couldn't be
enough. Do you remember anything else on an issue like this where I
should be looking?
Thanks.
--
Nuno Miguel Reis
Departamento de Engenharia Informática
Faculdade de Ciências e Tecnologia
Universidade de Coimbra
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users(a)lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
--
Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users(a)lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
1339
days inactive
1340
days old
5 comments
4 participants
participants (4)
-
Alex Balashov -
Henning Westerholt -
Jurijs Ivolga -
Nuno Miguel Reis