Freaks City

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 ...

Circuit breakers serve as a protective mechanism to prevent system overload during partial failures. Degradation strategies generally fall into two categories: active degradation, where non-core services are intentionally scaled down during high-load events like promotions, and passive degradation, which includes fallbacks triggered by circuit ...

Network Configuration Modify your local hosts file to map custom domain names to the loopback address for simulating a multi-node environment: 127.0.0.1 node1 127.0.0.1 node2 127.0.0.1 node3 Service Registry Setup Define the Maven dependencies for the Eureka Server. Ensure the spring-cloud-starter-netflix-eureka-server dependency is includ ...

Core Components of Spring Cloud Gateway Route: The fundamental building block of the gateway, consisting of an identifier, destination URI, predicates, and filters. When a request reaches the gateway, the Gateway Handler Mapping evaluates routes based on predicates. When a predicate returns true, the corresponding route is selected for forward ...