I have finally found the courage to migrate my VPS to systemd. I noticed a strange log message in the system journal that appears every 2 seconds:
Cannot find unit for notify message of PID 1985
PID 1985 is a uwsgi service:
root 1985 0.0 0.2 52832 1284 ? S 15:23 0:00 /usr/bin/uwsgi --ini /etc/uwsgi/emperor.ini
Anyone know what's causing this message, and if it should concern me?