Fault Tolerance
Fault tolerance is a system design principle and property that enables a system to continue operating properly in the event of the failure of some of its components. It involves implementing redundancy, error detection, and recovery mechanisms to ensure high availability and reliability. This concept is critical in distributed systems, cloud computing, and mission-critical applications where downtime can have severe consequences.
Developers should learn fault tolerance when building systems that require high availability, such as financial services, healthcare applications, e-commerce platforms, or any service where downtime leads to significant revenue loss or safety risks. It's essential for distributed systems, microservices architectures, and cloud-native applications to handle hardware failures, network issues, or software bugs gracefully without disrupting user experience.