systemctl status mysql If it shows active (running) , go back to your web browser, clear your cache, and refresh. If the error is gone—congratulations, you’re done. If MySQL fails to start or restarting didn't fix the GUI, the database tables are likely corrupted.
First, stop the service:
If you’ve spent any time building labs in EVE-NG, you know the feeling. You’re in the zone, dragging nodes onto the canvas, linking interfaces, and powering up routers. Suddenly, you hit a wall. Database Error 90003 Eve-ng
mysqld --datadir=/var/lib/mysql --skip-grant-tables --skip-networking & Next, log into MySQL manually (no password required due to skip-grant):
Bookmark this guide. If you run EVE-NG long enough, you will see this error again. When you do, just SSH in, restart MySQL, and get back to learning. systemctl status mysql If it shows active (running)
If nothing else works:
systemctl restart mysql Now, check if it is actually running: First, stop the service: If you’ve spent any
It’s vague. It’s frustrating. And it usually brings your lab building session to a screeching halt.
killall mysqld systemctl start mysql systemctl restart eve-ng Warning: This resets user accounts to default (admin/eve). It does NOT delete your lab topologies or images.
repair table auth_behavior; repair table labs; repair table nodes; repair table users; exit; Finally, kill the safe mode process and restart normally:
mysql -u root eve_ng_prod Once inside the MySQL prompt ( mysql> ), run the repair command: