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Understanding Load Balancers A load balancer is a network device or software mechanism that distributes incoming network traffic across multiple backend servers, enabling optimal resource utilization while enhancing system availability and performance. Load Balancer Types Load balancing can be categorized into two main types: Server-side load ...

Eureka is a service discovery component originally developed and open-sourced by Netflix. It plays a critical role in microservices-based systems, where applications are decomposed into small, independently deployable services that must dynamically locate and communicate with one another. Core Mechanisms of Eureka Service Registration: Upon st ...

Nacos Client Configuration Loading Mechanism The externalized configuration implementation in Nacos is primarily handled by the NacosPropertySourceLocator. This component is responsible for loading configuraton data from Nacos and making it available to the Spring application context. The configuration loading process involves several key steps ...

Project Architecture Overview The system adopts a microservices architecture, decomposing business capabilities into independently deployable services communicating over lightweight HTTP APIs. Each service handles its own data storage and can be developed with dedicated technology stacks. The architecture diagram splits the monolith into servic ...

Spring Cloud Sleuth serves as a distributed tracing mechanism integrated within the Spring Cloud ecosystem. Its primary objective is to simplify the process of debugging and monitoring requests across microservices by injecting unique identifiers into service communications. In complex microservice architectures, an inbound request often traver ...

Currrent Project Architecture Issues Introducing Eureka In a typical project, the member center is often deployed as a cluster to handle high concurrency and large loads. For instance, if the member center runs on a single host that can only handle 10,000 requests, many concurrent requests would overwhelm it. By using a cluster (multiple serve ...

Local Transaction Fundamentals Database transactions guarantee ACID properties: Atomicity, Consistency, Isolation, and Durability. In monolithic applications, a single connection handles multiple table operations, enabling straightforward rollback mechanisms. Consider an e-commerce checkout flow: Inventory Service: Deducts stock quantities Ord ...

Distributed System Architecture Fundamentals Modern financial systems require robust architecture patterns. Microservices should enforce single responsibility principles with independent deployment units. Implement stateless services by storing user sessions in Redis clusters, enabling seamless load balancing through Nginx. Integrate circuit br ...

Nacos offers a centralized configuration service, allowing external management of application properties across all environments while supporting real-time updates without service restarts. Adding Configuration Files in Nacos Begin by creating a configuration entry in the Nacos console. For example, define a file named inventory-service-prod.ya ...

Understanding API Gateway in Microservices In a microservices architecture, backend services are typically not directly exposed to client applications. Instead, an API Gateway acts as an intermediary that routes incoming requests to appropriate services based on the requested URL. By implementing an API Gateway, a protective layer is establish ...