$ grep respawn /etc/init/mysql.conf
respawn
respawn limit 2 5
        elif echo $statusnow | grep -q 'respawn/' ; then

sudo service mysql stop

/etc/init.d/mysql stop
service mysql stop
killall -KILL mysql mysqld_safe mysqld

mysql: no process found
mysqld_safe: no process found
mysqld: no process found

mysqld_safe A mysqld process already exists

sudo /etc/init.d/mysql restart

sudo /etc/init.d/mysql stop

$> find '/etc' | grep 'mysql'

/etc/systemd/system/multi-user.target.wants/snap.nextcloud.mysql.service
/etc/systemd/system/snap.nextcloud.mysql.service
/etc/apparmor.d/abstractions/mys