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

[inderjeet sharma]

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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