Multi-Master Replication
Multi-master replication is a database replication technique where multiple database servers (masters) can accept write operations, and changes are synchronized across all nodes to maintain consistency. It enables high availability and load balancing by allowing read and write operations on any node, reducing single points of failure. This approach is commonly used in distributed systems to improve performance and fault tolerance.
Developers should learn multi-master replication when building scalable, highly available applications that require low-latency write access from multiple geographic locations, such as global web services or real-time collaborative tools. It is essential for scenarios where write operations must be distributed across nodes to handle high traffic or ensure data redundancy, though it introduces complexity in conflict resolution and consistency models.