MySQL Database Cluster

High-Availability MySQL Database Cluster

Deployed and managed high-availability MySQL database clusters for enterprise applications requiring reliable data persistence with minimal downtime. The cluster architecture uses MySQL Group Replication with automatic failover to ensure continuous availability even during node failures or maintenance windows.

The cluster was configured with primary-secondary replication across multiple availability zones for disaster recovery. Read replicas were set up to distribute query load and improve read performance for data-intensive applications. Connection pooling with ProxySQL was implemented to efficiently manage database connections, route read/write traffic, and provide query-level load balancing.

Automated backup strategies including full and incremental backups with point-in-time recovery were configured. Performance tuning was applied to optimize query execution, buffer pool sizing, and InnoDB configuration for the specific workload patterns. Monitoring was integrated with Prometheus and Grafana for real-time visibility into replication lag, query performance, and resource utilization.

Key Highlights

• MySQL Group Replication with automatic failover for high availability
• Multi-AZ deployment for disaster recovery and data durability
• Read replicas and ProxySQL for query load balancing
• Automated backup strategies with point-in-time recovery
• Performance tuning for InnoDB, buffer pool, and query optimization
• Integrated monitoring with Prometheus and Grafana dashboards