Remove the dedicated database user created for Observium (typically named observium ): DROP USER 'observium'@'localhost'; Use code with caution. Flush privileges and exit: FLUSH PRIVILEGES; EXIT; Use code with caution. Step 4: Delete the Observium Source Files and RRD Data
sudo systemctl reload apache2
The default installation directory is usually /opt/observium . Deleting this folder removes the application files and the web interface. Run: sudo rm -rf /opt/observium uninstall observium ubuntu
Also remove any symlinks or other copies (e.g., if installed in /var/www/html/observium ): Remove the dedicated database user created for Observium
That was the first crack. Over the next week, more cracks appeared. The graphs for memory usage flatlined. The auto-discovery feature, once a marvel, now identified servers as "unknown device (generic)." The web interface took forty-five seconds to load. Upgrading it—a task involving a labyrinth of ./discovery.php and ./poller.php commands—failed with a PHP dependency error so cryptic it felt like a personal insult. Deleting this folder removes the application files and