[OpenSIPS-Users] OpenSIPS stops responding - timer lag + recv-queue buildup

[inderjeet sharma]

version:
opensips 3.1.11
(x86 64/linux)
٧-
flags: STATS: On,
DISABLE_NAGLE, USE MCAST,
PKG_MALLOC, Q_MALLOC, F_MALLOC, HP_MALLOC, DBG_MALLOC, FAST_LOCK
ADAPTIVE_WAIT
ADAPTIVE WAIT LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16,
MAX_URI_SIZE 1024,
BUF_SIZE 65535
poll method support: poll, epoll, sigio_rt, select. git revision: c51486e3a
main.c compiled on 09:20:17 Nov 20 2024 with gcc 11

OpenSSL 3.0.2

PRETTY_NAME="Ubuntu 22.04.5 LTS"
NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.5 LTS (Jammy Jellyfish)™
VERSION CODENAME=] ammy



On Tue, 4 Nov 2025 at 1:50 pm, inderjeet sharma <inder.itpro at gmail.com>
wrote:

> Hi all,
>
> I've been running OpenSIPS (v3.x) in a Docker container for the past 1-2
> years as a WebSocket (WSS) registrar handling SIP registrations.
> It has been stable until recently — for the past few weeks, I'm seeing
> severe performance stalls.
>
> • OpenSIPS suddenly stops responding to SIP REGISTER requests.
> • ss -unap shows high Recv-Q values on the listening ports (UDP + WSS).
> • The log is flooded with warnings like:
> 08:55:31 opensips-3-1 /usr/local/sbin/opensips[79638]:
> WARNING: core: utimer_ticker: utimer task <tm-utimer> already
> 117150 ms ago (now
> 336619940 ms), delaying execution
> Nov 3 08:55:31 opensips-3-1/usr/local/sbin/opensips[79638]: WARNING: core:
> utimer_ticker: timer task ‹tm-utimer> already
> scheduled 117280 ms ago (now
> 336620070 ms), delaying execution
> Nov
> 308:55:32 opensips-3-1/us/local/sbin/opensips[79638]: WARNING: core:
> utimer_ticker: utimer task <tm-utimer> already
> scheduled 117350 ms ago (now
> 336620140 ms), delaying execution
> NOT
> 3 08:55:32 opensips-3-1/usr/local/sbin/opensips[79638]: WARNING: core:
> timer_ ticker: timer task <1b-pinger> already scheduled ms ago (now
> 336620140 ms), delaying execution
> 08:55:32 opensips-3-1/us/local/sbin/opensips[79638]: WARNING: core:
> timer_ticker: timer task ‹nh-timer> already scheduled ms ago (now 336620140
> ms), delaying execution
> 308:55:32 opensips-3-1/us/local/sbin/opensips[79638]: WARNING:
> core:timer_ticker: timer task <pg-chk-timer> already
> scheduled 54750 ms ago (now 336620140 ms), delaying execution
> NOV
> 308:55:32 opensips-3-1/usr/local/sbin/opensips[79638]: WARNING: core:
> timer_ticker: timer task ‹ul-timer> already scheduled
> 79650 ms ago (now 336620140 ms), delaying execution
> Nov
> 308:55:32 opensips-3-1/us/local/sbin/opensips [79638]: WARNING: core:
> timer_ticker: timer task <d1g-reinvite-pinger> already
> scheduled 54750 ms ago (now 336620140 ms), delaying execution
> Nov 308:55:32 opensips-3-1/us/local/sbin/opensips[79638]: WARNING:
> core:timer_ticker: timer task ‹dig-options-pinger> already
> 308:55:32 opensips-3-1/us/local/sbin/opensips[79638]: WARNING: core:
> timer_ticker: timer task ‹dlg-timer> already scheduled
> 115460 ms ago (now 336620140 ms), delaying execution
> Nov 308:55:32 opensips-3-1/usr/local/sbin/opensips[79638]: WARNING: core:
> timer_ticker: timer task <EBR timeout> already scheduled 54750 ms ago (now
> 336620140 ms), skipping execution
> 308:55:32 opensips-3-1/usr/local/sbin/opensips[79638]: WARNING: core:
> timer_ticker: timer task ‹tm-timer> already
>
> • Killing the process or restarting the container sometimes does not help
> immediately.
> • CPU and memory usage inside Docker appear normal.
>
> Thanks
> Inderjeet
>
>
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