Especially in systems with a Single-Primary Database Replication architecture, this annotation boosts performance by routing read-only transactions to replica nodes, reducing the load on the primary database.

Key benefits include:

📈 Better Scalability: Offloading read operations to replicas allows the primary database to focus on writes, enhancing system throughput.

🔄 Fault Tolerance: If the primary node fails, replicas maintain the availability of read operations.

⚡ Optimized Resource Usage: Read-only transactions use fewer resources, as they don’t lock or modify data.

🛠️ Simplified Configuration: Applying @Transactional(readOnly = true) at the class level ensures efficient routing of read methods to replicas without redundant setup.

By minimizing primary node contention and boosting database performance, this pattern is essential for high-performance applications. 🚀

Details by Java Champion Vlad Mihalcea: https://vladmihalcea.com/read-write-read-only-transaction-routing-spring/

#spring #programming #optimization