Remote Procedure Call (RPC) Fundamentals RPC enables a program to execute a procedure on a different address space, typically across a network, as if it were a local method invocation. Unlike local calls that operate within the same JVM memory space, RPC abstracts network communication, serializatio...
OpenFeign Integration with Nacos 1. Dependencies & Initial Setup First, add required dependencies to your Maven pom.xml: <!-- OpenFeign core for remote service calls --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-openf...
In distributed microservice architectures, handling inter‑service communication reliably and efficiently is critical. A service mesh provides a dedicated infrastructure layer that offloads traffic management, security, and observability from individual services. At its core, service discovery is a f...
Compiling Nacos requires retrieving the repository directly rather than relying on pre-built artifacts. The project follows a standard multi-module Maven layout. Parent directories typically encapsulate dependency management, while specific modules handle business logic like service discovery routin...
When implementing remote service integrations with Spring Cloud OpenFeign, a common pattern involves wrapping outgoing requetss and incoming responses in a unified protocol structure. Developers typically register a custom Decoder to extract payload data, validate HTTP status codes, and rethrow remo...
Hystrix is a latency and fault tolerance library from Netflix designed for distributed systems. In microservices architectures, inter-service communication is common, and failures or delays in one service can cascade and degrade overall system performance. Hystrix mitigates these risks by isolating...
Microservice Architecture Concepts The evolution of software architecture has progressed through several stages: monolithic architecture → clustering → verticalization → service-oriented architecture (SOA) → microservices (granular implementation of SOA). SOA vs. Microservices SOA (Service-Oriented...
Overview of Spring Cloud Spring Cloud is a framework built on Spring Boot that facilitates the development of distributed systems and microservices. It provides tools for integrating with external systems and managing service interactions. Spring Cloud includes components like Spring Cloud Stream fo...
Integrating Spring Boot applications into an Istio service mesh replaces traditional service discovery mechanisms, but requires precise configuration to ensure inter-service communication succeeds. During deployment, several common errors can block traffic routing. Common errors encountered during I...
Spring Boot and Spring Cloud applications support both fixed and random port assignment. However, both methods present mangaement challenges. Fixed ports risk conflicts, especial in microservice architectures. Random ports, while avoiding conflicts, introduce unpredictability in service discovery an...