Master-Slave Architecture
Master-slave architecture is a design pattern in computing where one central component (the master) controls and coordinates one or more subordinate components (the slaves). The master typically handles tasks like request distribution, load balancing, and state management, while the slaves execute specific operations, such as data processing or storage. This pattern is commonly used in distributed systems, databases, and hardware configurations to improve scalability, reliability, and performance.
Developers should learn and use master-slave architecture when building systems that require high availability, fault tolerance, or horizontal scaling, such as in database replication, web server clusters, or IoT networks. It is particularly useful in scenarios where a single point of control can efficiently manage multiple workers, like in Redis for caching or MySQL for read replicas, to handle increased loads and ensure data consistency.