25 Oct
2022
25 Oct
'22
11:27 p.m.
Well, no, it just stems from some knowledge of Kamailio’s multiprocess architecture.
Kamailio uses a static pool of preforked SIP worker processes, and this is initialised
once upon startup. These child processes are spawned for every listener, and communicate
and share data using SysV IPC and shared memory. The shared memory pool is likewise
initialised upon startup, as is the small fixed-size area of private memory associated
with each other worker process (“package memory”).
While perhaps not strictly impossible to alter, this setup isn’t particularly amenable to
the dynamic creation and destruction of listeners, or the additional child processes they
beget. The child processes need to be forked on startup, before their heap is laden with
runtime baggage. All this is relatively expensive to initialise.
— Alex
On Oct 25, 2022, at 4:14 PM, H Yavari
<hyavari(a)rocketmail.com> wrote:
Thanks Alex.
Is there any document or material that tells more about those reasons?
Regards,
Hossein
On Tuesday, October 25, 2022 at 01:00:18 PM PDT, Alex Balashov
<abalashov(a)evaristesys.com> wrote:
Hi,
Unfortunately, for a variety of architectural reasons, this is not practical.
— Alex
--
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/
On Oct 25, 2022, at 12:43 PM, H Yavari
<hyavari(a)rocketmail.com> wrote:
Hi Kamailio community,
I am running an IPsec server beside Kamailio, so I am interested to know if there is any
method to create a SIP listener on a specific port on the fly. I mean, when I create the
IPsec SAs through the IPsec server, I ask Kamailio to create a listener/handler for that
port too.
This case might be very rare, but it is always good to hear community ideas.
Thank you.
Regards,
Hossein
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--
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/
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