Service Discovery and Health Checking refer to core functions in distributed systems that help applications locate services and ensure they are operating correctly. Service discovery automatically detects available services and their network locations without manual configuration. It allows microservices to communicate dynamically in cloud-native and scalable environments. Health checking continuously monitors service instances to verify availability, responsiveness, and performance. Unhealthy services are removed from routing to prevent failures and improve reliability. Tools like Consul, Kubernetes, and Eureka commonly provide these features. Together, service discovery and health checking improve system resilience, scalability, and fault tolerance in modern distributed architectures.
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