Developed and integrated MySQL multi-host connection failover for the openbao/openbao repository, enhancing database connectivity by enabling automatic failover to secondary hosts when the primary became unavailable. This feature improved uptime and resilience for critical applications by reducing the risk of database downtime. The implementation focused on robust fault-tolerance logic within the Go programming language, leveraging database management and error handling skills to ensure reliable cross-host failover. Comprehensive testing validated the solution’s effectiveness, while clear commit messaging and traceability supported maintainability. The work demonstrated a thoughtful approach to high-availability design, directly addressing reliability challenges in the data access layer.