[sr-dev] kamailio trouble

Sergey Safarov s.safarov at gmail.com
Sun Jul 25 09:28:47 CEST 2021

Probably you need to increase process limit


This may be done via systemd unit file or drop-in


On Sun, Jul 25, 2021 at 9:44 AM 崔群 <ruoqingcuiqun at 163.com> wrote:
> Dear sir:
>        I have some problems。the kamailio version is 5.3.0. My linux version is centos 7. the kamailio log:
> ERROR: <core> [core/tcp_main.c:3508]: send_fd_queue_run(): send_fd failed on socket 63 , queue entry 1, retries 90, connection 0x7ff46e6b1b60, tcp socket 218, errno=11 (Resource temporarily unavailable)
> ERROR: {1 12529 MESSAGE 359bf0410a7e471c950623e3f7a3b17b} <core> [core/kemi.c:94]: sr_kemi_core_err(): 202->408
> CRITICAL: <core> [core/tcp_main.c:4218]: send2child(): tcp child 6, socket 65: queue full, 291 requests queued (total handled 10665748)
> This problem does not happen every time。When the number of user registrations increases significantly, errors will appear。I tried to set the parameter tcp_children is adjusted to 8, it will not appear frequently, but when the number of user registrations increases to about 5000, errors will still appear. My kamailio.cfg global parameters are set as follows:tls_max_connections=65536,tcp_max_connections=65536,open_max_files=65536。
> I hope you can reply to me,thanks.
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