# Check system logs journalctl -xe --since "10 minutes ago" # Check system resources free -h && df -h && uptime # Check running processes ps aux --sort=-%mem | head -20 # Check system logs journalctl -xe --since "10 minutes ago" # Check system resources free -h && df -h && uptime # Check running processes ps aux --sort=-%mem | head -20 # Check system logs journalctl -xe --since "10 minutes ago" # Check system resources free -h && df -h && uptime # Check running processes ps aux --sort=-%mem | head -20 # Restart the affected -weight: 500;">service -weight: 500;">systemctl -weight: 500;">restart your--weight: 500;">service # Check the -weight: 500;">service logs journalctl -u your--weight: 500;">service -n 100 --no-pager # Verify the fix worked -weight: 500;">systemctl -weight: 500;">status your--weight: 500;">service -weight: 500;">curl -I http://localhost:PORT/health # Restart the affected -weight: 500;">service -weight: 500;">systemctl -weight: 500;">restart your--weight: 500;">service # Check the -weight: 500;">service logs journalctl -u your--weight: 500;">service -n 100 --no-pager # Verify the fix worked -weight: 500;">systemctl -weight: 500;">status your--weight: 500;">service -weight: 500;">curl -I http://localhost:PORT/health # Restart the affected -weight: 500;">service -weight: 500;">systemctl -weight: 500;">restart your--weight: 500;">service # Check the -weight: 500;">service logs journalctl -u your--weight: 500;">service -n 100 --no-pager # Verify the fix worked -weight: 500;">systemctl -weight: 500;">status your--weight: 500;">service -weight: 500;">curl -I http://localhost:PORT/health # Add monitoring # Add health checks # Set resource limits # Configure alerting # Add monitoring # Add health checks # Set resource limits # Configure alerting # Add monitoring # Add health checks # Set resource limits # Configure alerting - Resource exhaustion (memory, disk, CPU) - Configuration mismatch - Dependency failure - Code-level bug