Multi-Version Concurrency Control: Optimistic Approaches

This lecture covers the topic of Multi-Version Concurrency Control (MVCC) with a focus on optimistic approaches. It discusses techniques such as Optimistic Concurrency Control (OCC), Serializing read-only transactions, On-Demand Multi-Versioning, and Intentional Locking for Updates. The instructor explains how these methods reduce contention windows, prevent conflicts, and improve throughput in transaction processing systems. Various strategies like early abort, granularizing locks, and load-aware partitioning are explored to enhance scalability and performance. The lecture also presents experimental setups and empirical evaluations to demonstrate the effectiveness of MVCC in handling read-only and read-write transactions.