Description: The horizontal scalability metric refers to a system’s ability to increase its performance by adding more nodes to the network, rather than improving the hardware of a single node. This approach allows applications and services to expand more efficiently and cost-effectively, as multiple servers or instances can be incorporated instead of relying on a single, more powerful server. Horizontal scalability is particularly relevant in distributed computing environments, where demand can vary significantly. By adding additional nodes, workloads are distributed, which not only improves performance but also provides redundancy and resilience against failures. This metric is often measured in terms of performance, responsiveness, and system availability, and is crucial for ensuring optimal service quality in critical applications. In summary, the horizontal scalability metric is a key indicator of a system’s ability to grow and adapt to changing needs without compromising its performance.
