Optimistic Locking vs Pessimistic Locking Explained System Design & Databases

In this video, we break down the difference between Optimistic Locking and Pessimistic Locking — two critical concurrency control mechanisms used in modern databases and distributed systems. Learn how databases handle simultaneous transactions, prevent lost updates, and maintain consistency in high-scale applications. Covered in this video: What is Optimistic Locking? What is Pessimistic Locking? Version-based concurrency control Database row locking Conflict detection Transaction consistency Deadlocks and scalability Real-world system design examples Distributed systems concurrency High-performance database architecture We also explain where each strategy is commonly used: Banking systems Financial transactions Inventory management Microservices REST APIs NoSQL databases Enterprise applications Perfect for: Backend Developers System Design Engineers Database Engineers Java Developers Cloud Architects Software Engineers Interview Preparation Understand the tradeoffs between: Scalability vs Consistency Throughput vs Lock Safety Concurrent Access vs Blocking Subscribe to Bazai for advanced technical content on: Distributed Systems, Databases, Cloud Infrastructure, AI Systems, Kubernetes, Backend Engineering, and Modern Software Architecture. #SystemDesign #Database #DistributedSystems #BackendDevelopment #Java #Microservices #SoftwareEngineering #CloudComputing #Bazai #Databases