Rspamd 100% CPU use.

Ispconfig 3, Debian 11 VirtualBox Guest. Rspamd causes 100% CPU load. VirtualBox configured for 4 CPU's and 4GB RAM, CPU is AMD btver2 with 4 cores. When I disable rspamd CPU load drops to near 0%. If I move the VirtualBox to a PC with a AMD znver1 or AMD znver2 CPU the CPU load is normal.
The VirtualBox hosts are Gentoo systems. Used Ispconfig for many years on Debian 9 and earlier on the AMD btver2 until Christmas without any problems.
Is there a solution?

 

Why post twice? https://forum.howtoforge.com/threads/rspamd-100-cpu-use.89968/
What is in the logs? Any error messages shown in Rspamd History tab?

 

Rspamd Status:
root@server-1:/etc/init.d# /etc/init.d/rspamd -l status
Usage: /etc/init.d/rspamd {start|stop|restart|reload|force-reload|reopenlog}
root@server-1:/etc/init.d# /etc/init.d/rspamd status -l
● rspamd.service - rapid spam filtering system
Loaded: loaded (/lib/systemd/system/rspamd.service; disabled; vendor preset: enabled)
Active: active (running) since Tue 2023-01-03 18:56:18 AEST; 13s ago
Docs: https://rspamd.com/doc/
Main PID: 21363 (rspamd)
Tasks: 1 (limit: 2938)
Memory: 89.0M
CPU: 13.371s
CGroup: /system.slice/rspamd.service
└─21363 /usr/bin/rspamd -c /etc/rspamd/rspamd.conf -f

Jan 03 18:56:18 server-1 systemd[1]: Started rapid spam filtering system.
Jan 03 18:56:18 server-1 rspamd[21363]: 2023-01-03 18:56:18 #21363(main) <73fce1>; main; main: rspamd 3.4 is loading configuration, build id: release
-

 

[SOLVED]
FIX:
- root@server1:~# /etc/init.d/rspamd stop'
- root@server1:~# rm /var/lib/rspamd/*.*
- root@server1:~# reboot
- login server1 as root
- root@server1:~# top
- check rspamd CPU use
- wait until rspamd CPU use drops to near 0. It takes about 15 minutes with my server.
- root@server1:/# /etc/init.d/rspamd status
Output should be similar to this:
● rspamd.service - rapid spam filtering system
Loaded: loaded (/lib/systemd/system/rspamd.service; enabled; vendor preset: enabled)
Active: active (running) since Tue 2023-01-03 20:44:07 AEST; 13h ago
Docs: https://rspamd.com/doc/
Process: 7080 ExecReload=/bin/kill -HUP $MAINPID (code=exited, status=0/SUCCESS)
Main PID: 589 (rspamd)
Tasks: 6 (limit: 2938)
Memory: 149.8M
CPU: 1min 42.690s
CGroup: /system.slice/rspamd.service
├─ 589 rspamd: main process; 0.1 msg/sec, 0.0 msg/sec spam, 0.1 ms…
├─7084 rspamd: rspamd_proxy process (localhost:11332)
├─7085 rspamd: controller process (localhost:11334)
├─7086 rspamd: normal process (localhost:11333)
├─7087 rspamd: normal process (localhost:11333)
└─7088 rspamd: hs_helper process

Jan 03 22:06:03 server-1 systemd[1]: Reloading rapid spam filtering system.
Jan 03 22:06:03 server-1 systemd[1]: Reloaded rapid spam filtering system.
Jan 03 22:07:02 server-1 systemd[1]: Reloading rapid spam filtering system.
Jan 03 22:07:02 server-1 systemd[1]: Reloaded rapid spam filtering system.
Jan 04 00:00:20 server-1 systemd[1]: rspamd.service: Sent signal SIGUSR1 to…est.
Jan 04 00:00:20 server-1 systemd[1]: rspamd.service: Sending signal SIGUSR1…est.
Jan 04 00:00:20 server-1 systemd[1]: rspamd.service: Sending signal SIGUSR1…est.
Jan 04 00:00:20 server-1 systemd[1]: rspamd.service: Sending signal SIGUSR1…est.
Jan 04 00:00:20 server-1 systemd[1]: rspamd.service: Sending signal SIGUSR1…est.
Jan 04 00:00:20 server-1 systemd[1]: rspamd.service: Sending signal SIGUSR1…est.
Hint: Some lines were ellipsized, use -l to show in full.