Learn how to replace static Prometheus target files with dynamic service discovery by integrating Alibaba’s open‑source Nacos registry, configuring a Go‑based adapter, adding HTTP‑SD configs to the Prometheus Operator, and validating the automated monitoring of large‑scale microservice deployments.
A massive Google Cloud outage on June 12, 2025, caused by an untested Service Control feature triggered a null‑pointer exception that cascaded globally, and the article explains how configuration gray‑release techniques—especially Nacos IP and label canary deployments—can prevent similar disasters.
This tutorial walks through setting up Nacos as a cloud‑native service registry and configuration center, covering installation modes, service registration, discovery, load‑balancing with Spring Cloud, dynamic configuration loading, namespace isolation, and best‑practice patterns for managing microservice environments.
This article explains the inner workings of Nacos' configuration center, detailing the client‑side long‑polling mechanism, the server‑side handling of listener requests, and the key classes and code paths that enable real‑time config updates in microservice environments.
Updating Nacos configuration directly in the database bypasses MD5 verification and event notifications, so changes appear successful but are invisible to services until the configuration is republished through the console or Open API, which correctly triggers the full update flow.
This guide explains how to overcome Dify's limitations by using Nacos 3.0 to register MCP servers, dynamically manage prompts, and centralize environment variables, enabling rapid AI application iteration without redeployment.
This article examines Nacos 3.0’s architectural evolution from Nacos 2.0, highlighting performance and extensibility upgrades, the new AI Registry with model, tool, and application layers, zero‑trust security enhancements, MCP Registry capabilities, and the roadmap toward a comprehensive AI‑native cloud‑native platform.
This article explains how to protect and dynamically rotate database usernames and passwords in modern applications by integrating MSE Nacos, Alibaba Cloud KMS, and Apache Druid, reducing leakage risk, eliminating manual maintenance, and achieving near‑instant, zero‑downtime credential updates.
This article provides a comprehensive overview of Nacos, detailing its role as a dynamic naming and configuration service, explaining its three-layer architecture, core modules, service registration and discovery mechanisms, configuration management features, and the underlying data persistence strategy for cloud‑native applications.
Version 3.0 of Nacos introduces a decoupled architecture with independent console deployment, multiple port configurations, three flexible deployment modes (merged, server, console), a modular bootstrap startup engine, and an embedded integration approach that simplifies microservice governance while enhancing security and performance.
This guide explains how to adapt a distributed micro‑service architecture to run all SpringBoot services inside one external Tomcat instance by changing packaging to WAR, configuring server.xml, setting memory options, adjusting virtual addresses, handling logs, and registering services with Nacos for low‑memory environments.
This article reviews a recent cloud‑native event, explains how Nacos 3.0 upgrades its architecture, introduces the MCP Registry for AI Agent development, and details zero‑trust security measures, while also showing integration patterns with Spring AI Alibaba and Higress for enterprise AI solutions.
This article explains the principles and workflow of Nacos service registration, covering why dynamic service discovery is needed, how instances register, send heartbeats, and are deregistered, and includes code examples and diagrams to illustrate the process.
Learn how to replace plain‑text passwords in Spring Cloud’s Nacos configuration with encrypted values by extending NacosConfigProperties, overriding its initialization, and registering a custom bootstrap auto‑configuration, ensuring your application complies with corporate security policies.
The new Nacos MCP Router release introduces full SSE and Streamable HTTP protocol support, Dockerized deployment, and a one‑click conversion feature that transforms Stdio or SSE MCP servers into Streamable HTTP, simplifying integration across heterogeneous systems, micro‑service architectures, AI assistants, and cloud‑native applications.
This article examines the Model Context Protocol (MCP) in the era of large AI models, compares five common MCP server architectures, evaluates their pros, cons, and suitable scenarios, and shows how Nacos can provide service discovery, configuration, and governance to simplify enterprise‑level MCP deployment.
This guide explains how to build a Nacos service cluster, configure providers and consumers, write the necessary Spring Cloud Nacos YAML and Java controller code, detail the steps for setting up multiple Nacos nodes, and troubleshoot typical startup errors.
Amid the surge of AI large‑model usage, this guide examines the Model Context Protocol (MCP) and presents five common server architectures, evaluates their pros, cons, and suitable scenarios, and shows how Nacos can streamline enterprise‑level MCP deployment through service discovery, configuration, and governance.
This article explains how to implement gray (canary) release in a Spring Cloud project using Nacos for service discovery, custom request headers, ThreadLocal gray flags, Spring Cloud Gateway filters, custom Ribbon load balancer rules, and provides full code snippets, configuration steps, and deployment instructions.
This guide walks through upgrading a Spring Cloud Gateway by integrating Nacos as a service registry and configuration center, showing how to enable automatic request forwarding, dynamic route loading, and load‑balancing with step‑by‑step code examples and configuration files.
Discover how Nacos 3.0 introduces a high‑availability distributed lock feature that eliminates the need for external services like Redis or ZooKeeper, learn step‑by‑step integration with Spring Boot, explore its core components, and unlock advanced extensibility via Java SPI.
This article examines Nacos 3.0’s major architectural overhaul—including console‑service decoupling, independent ports, three deployment modes, a new bootstrap startup engine, and step‑by‑step embedded integration—showcasing how the redesign boosts security, performance, and flexibility for microservice ecosystems.
This article walks through integrating SpringBoot, Dubbo, and Seata to implement reliable distributed transactions, covering project setup, Maven dependencies, service definitions, Nacos registration, configuration files, testing normal commits and rollbacks, and troubleshooting version incompatibilities.
The article introduces Nacos 3.0’s major upgrades—including migration to JDK 17 and Spring Boot 3.4.1, new Admin APIs, default authentication, AI‑focused Model Content Protocol, distributed lock, fuzzy listening, and native xDS support—while also promoting an enterprise‑level backend engineering booklet priced at 11.9 CNY.
The article explains why Sentinel rate‑limiting rules disappear after a client restart, demonstrates how to store those rules permanently in Nacos by creating a JSON configuration, adding a Nacos data source to the Sentinel client, and modifying the Sentinel Dashboard source code to achieve bidirectional synchronization, followed by verification steps.
This article outlines the major technical upgrades in Nacos 3.0—including JDK 17, Spring Boot 3.4.1, enhanced Admin API, default authentication, MCP for AI models, unified namespaces, distributed‑lock beta, fuzzy listening, and xDS support—while also promoting a series of AI‑focused products, community groups, and paid resources for developers.
This article summarizes the key changes from the Nacos 3.0 beta to the official release, covering JDK and Spring Boot upgrades, new Admin APIs, default authentication, AI Model Content Protocol, unified namespaces, beta distributed lock, fuzzy listening, and native xDS support for cloud‑native microservice architectures.
Version 3.0 of Nacos introduces major updates—including JDK 17 and Spring Boot 3.4.1 support, enhanced Admin and Console APIs, default authentication, AI‑focused Model Content Protocol, unified namespaces, beta distributed lock and fuzzy listening features, and native xDS protocol support—aimed at improving cloud‑native service discovery and configuration management.
Version 3.0 of Nacos upgrades to JDK 17 and Spring Boot 3.4.1, introduces AI‑focused MCP, enhanced Admin API with default authentication, unified namespaces, beta distributed lock and fuzzy listening features, and native xDS protocol support, while highlighting related open‑source SpringBoot + Vue e‑commerce projects.
Nacos 3.0 introduces major upgrades—including JDK 17 and Spring Boot 3.4.1 support, a new Admin API, default authentication, AI‑focused MCP, unified namespaces, beta distributed lock and fuzzy listening features, plus native xDS protocol support—positioning it as a powerful cloud‑native service discovery and configuration platform.
This tutorial walks through integrating Dubbo with Spring Boot using Nacos as the service registry, showing how to create a shared API module, configure provider and consumer Maven projects, annotate services with @Service and @Reference, and verify successful RPC calls via a simple REST endpoint.
This article walks through using Nacos as a centralized configuration center for Spring Cloud microservices, showing how to create configuration data, set up a Maven client, enable dynamic refresh with @RefreshScope, and manage multi‑environment and multi‑file configurations.
This article introduces Spring Cloud Alibaba, outlines its key components such as Nacos, Dubbo, Sentinel, RocketMQ and Seata, explains how to manage its versions with Maven, highlights compatibility checks, and compares the first‑ and second‑generation Spring Cloud stacks.
The article explains how Nacos, acting as an MCP Registry, can transform existing service APIs into MCP‑compatible interfaces without code changes, detailing the integration with Higress, the underlying tool/list exposure, protocol conversion, deployment steps, and a weather‑query demo that showcases the end‑to‑end workflow.
This article demonstrates how to use the Adapter pattern to abstract multiple OSS providers such as MinIO and Aliyun in a Spring microservice, configure the concrete adapters via Nacos dynamic configuration, and expose a unified upload API through a service and controller layer, complete with deployment and testing steps.
This article demonstrates how to use the Adapter pattern in a Spring Boot microservice to abstract multiple OSS providers such as Minio and Aliyun, including code implementations, configuration with Nacos, and a complete upload workflow with a FileService and controller.
This guide explains how to use Spring Cloud Alibaba Sidecar to integrate heterogeneous microservices, covering its principles, configuration, health‑check setup, and a complete hands‑on example with Spring Boot services, Sidecar registration, Nacos discovery, and RestTemplate calls, while guaranteeing permanent updates for subscribers.
This article details a week‑long investigation of intermittent Nacos service deregistration in a Spring Cloud Alibaba microservice environment, describing the background architecture, multiple hypothesis tests, diagnostic commands, kernel version mismatch, and the final fix by upgrading the Linux kernel.
This guide shows how to enable Nacos metrics, configure Prometheus to scrape them, and visualize the data with a Grafana dashboard, providing a centralized view across different departments for enterprise monitoring and decision‑making.
Learn how to deploy a highly available Nacos service on Kubernetes using PostgreSQL as the backend, covering prerequisites, database initialization, configuration, Helm‑free manifests, driver installation, and verification steps to build a reliable micro‑service platform.
This article explains Nacos's custom tag gray release feature, covering its advantages over IP‑based gray releases, version requirements, tag configuration methods, publishing steps, multi‑tag and parallel gray versions, and priority rules to achieve flexible, safe configuration rollout in cloud‑native environments.
The Nacos 3.0‑Alpha release introduces finer‑grained API classification, default security per API type, a revised default namespace handling, native xDS support, a redesigned Admin API with flexible console/engine deployment, experimental distributed‑lock capability, and plans to upgrade to Spring Boot 3 and JDK 17, all outlined in the community roadmap.
This article explains the limitations of using @Value and @ConfigurationProperties for Nacos dynamic configuration in Spring Cloud, introduces the new @NacosConfig, @NacosConfigListener, and @NacosConfigKeysListener annotations, provides detailed usage examples, version upgrade guidance, Maven dependencies, and essential configuration snippets.
This article demonstrates how to integrate Nacos into a Spring Cloud application to achieve runtime configuration refresh, and how to employ Alibaba KMS for zero‑code encryption of sensitive properties, covering setup steps, code examples, underlying mechanisms, and best practices for secure, dynamic configuration management.
This article explains the fundamentals and implementation of a Nacos service registry in a Spring Cloud microservice architecture, covering registration concepts, building a standalone Nacos server, creating provider and consumer services, and deep-diving into the underlying registration code and HTTP interactions.
An in‑depth guide walks you through Nacos’s role as a unified service registry and configuration center, compares it with Eureka and Config, shows step‑by‑step Maven setup, YML configuration, service discovery, dynamic refresh, namespace and group isolation, persistence, and cluster deployment.
This guide explains how to integrate Nacos with Spring Cloud to achieve runtime configuration refresh, protect sensitive properties using Alibaba KMS without code changes, and details the underlying mechanisms, dependency setup, property source priority, and troubleshooting tips.
This guide shows how to use Spring AI Alibaba together with Nacos to securely store API keys, dynamically update Prompt templates and model parameters, and encrypt sensitive configurations without restarting Java AI applications.
This article explains how to externalize and dynamically adjust a Spring Boot thread pool's core and maximum sizes using Nacos as a configuration center, allowing runtime changes without service restarts and demonstrating the setup, code, and testing procedures.
This comprehensive guide walks you through installing Sentinel, configuring its dashboard, integrating it with Spring Cloud microservices, and mastering flow control, circuit breaking, hotspot parameter limiting, system adaptive protection, custom block handling, rule persistence with Nacos, and cluster-wide rate limiting.
This article explains how Nacos’s ConfigService initiates a long‑polling task on the client side, how the client periodically checks for configuration changes, and how the Nacos server processes long‑polling requests, detailing the relevant classes, methods, and code flow.
This article explains the concept of gray (canary) release, details the core components and version configuration, and provides a complete Spring Cloud implementation—including custom request holders, gateway filters, Ribbon load‑balancer extensions, Feign interceptors, and deployment instructions—for smoothly rolling out new service versions.
Celebrating Nacos reaching 30,000 stars, this article reviews the past two years of version upgrades, plugin and security enhancements, the revamped website, expanding multi‑language SDKs, and outlines the ambitious goals for Nacos 3.0 to become more secure, versatile, and cloud‑native.
This article explains Nacos, Alibaba's dynamic naming and configuration service, covering its architecture, service registration and discovery mechanisms, Raft‑based consistency, and configuration management with long‑polling, providing a comprehensive overview for microservice practitioners.
This comprehensive tutorial walks through Alibaba Sentinel's core concepts, installation, dashboard setup, microservice integration, flow‑control configurations, degradation strategies, hotspot parameter limiting, system‑adaptive rules, custom block handlers, whitelist/blacklist policies, rule persistence with Nacos, and cluster flow control for resilient Java backend services.
This article provides a comprehensive overview of five popular service registries—Zookeeper, Eureka, Nacos, Consul, and Etcd—covering their core concepts, CAP trade‑offs, underlying protocols, implementation details, and practical guidance for selecting the most suitable registry for microservice architectures.
This article provides a detailed walkthrough of Nacos' configuration center long‑polling mechanism, covering both client‑side initialization, reflection‑based service creation, scheduled tasks, cache handling, and server‑side request processing, with code examples and architectural diagrams to illustrate each step.
Recent disclosures revealed critical Spring DoS flaws (CVE‑2024‑38809 and CVE‑2024‑38808) exploitable via oversized If‑Match/If‑None‑Match headers and malicious SpEL expressions, plus a Nacos 2.4.1 vulnerability allowing arbitrary file read/write through port 7848, mitigated by upgrading to the patched Spring and Nacos releases or restricting the vulnerable ports.
This article dissects Nacos' configuration center long‑polling mechanism, detailing the client‑side initialization, thread‑pool scheduling, cache handling, and server‑side request processing, while illustrating the flow with code snippets and diagrams to help developers understand real‑time config synchronization.
This article explains the principles and source‑code flow of Nacos configuration center’s long‑polling mechanism, detailing how the client initiates periodic tasks, how the server processes listener requests, and how configuration changes are detected and propagated through various internal classes and threads.
This article explains how to implement gray (canary) release in a Spring Cloud micro‑service system using Nacos for service discovery, Spring Cloud Gateway filters, ThreadLocal gray flags, custom Ribbon load‑balancing rules, and configuration files to switch between production and gray versions.
This article analyzes recent critical security flaws in Spring Framework (CVE‑2024‑38808 and CVE‑2024‑38809) and Nacos Jraft port, explains their impact, provides version‑specific mitigation steps, code snippets for Spring Boot fixes, and offers additional hardening recommendations for developers and operators.
This article explains the evolution from monolithic to microservice architectures, introduces Spring Cloud Alibaba and Nacos for service discovery and governance, provides step‑by‑step installation and configuration instructions, and demonstrates load balancing with Ribbon, including essential code snippets for quick adoption.
This article explains the concept of gray (canary) release, details the required Spring Boot, Spring Cloud and Nacos versions, describes core components such as Nacos, Spring Cloud Gateway, Ribbon and OpenFeign, and provides a complete code‑first implementation with filters, interceptors, custom load‑balancer rules and deployment instructions for demonstrating gray release scenarios.
This comprehensive tutorial explains Nacos' advantages over Eureka, its Raft‑based consistency, integration with Spring Cloud Alibaba, detailed architecture, installation steps, standalone and cluster modes, and practical demos for using Nacos as both a service registry and a configuration center in microservice applications.
This article explains why Dubbo transitioned from interface-level to application-level service registration in version 3.x, detailing the performance pressures of interface registration, alignment with Spring Cloud and Kubernetes, and the underlying implementation using metadata centers, Nacos, Redis, and Zookeeper.
This article explains microservice service governance, covering registration and discovery, load balancing, rate limiting, circuit breaking, dynamic configuration management, and monitoring using tools like Nacos, Dubbo, Sentinel, Prometheus, and SkyWalking.
This article provides a step‑by‑step guide to implementing gray (canary) release in a Spring Cloud microservice architecture, covering core components such as Nacos registration, Spring Cloud Gateway filters, custom Ribbon load‑balancing, OpenFeign interceptors, and configuration details with full code examples.
This comprehensive guide explains Nacos's architecture, registration center, configuration center, deployment modes, data models, service discovery, health monitoring, dynamic configuration, multi‑environment support, and real‑time refresh mechanisms, providing practical code examples and operational best practices.
This article explains the fundamental concepts of service registries, examines CAP theory and consensus protocols, and provides a detailed analysis of Zookeeper, Eureka, Nacos, Consul, and Etcd—including their architectures, features, trade‑offs, and practical guidance for selecting the most suitable registry for a given environment.
This article walks through a complete gray‑release solution built on Spring Cloud, Nacos as the service registry, and a custom load‑balancer, detailing the architecture, code implementation, configuration, and step‑by‑step deployment to demonstrate traffic splitting and version routing.
This article explains how to implement a gray (canary) release strategy in a Spring Cloud microservice ecosystem using Nacos for service discovery, Spring Cloud Gateway for request routing, Ribbon for load balancing, and custom filters and interceptors to control traffic based on request headers, IP, city or user ID.
This guide explains how to enable Dameng database support in Nacos 2.3.2 by adding a custom SPI plugin, configuring connection properties, and optionally building the integration from source, complete with migration scripts, driver setup, and sample configuration files.
This comprehensive guide explains the fundamentals, CAP trade‑offs, and core algorithms of service registries, then details Zookeeper, Eureka, Nacos, Consul, and Etcd features, compares them across health checks, multi‑datacenter support, KV storage, and provides practical selection advice for developers and architects.
This article walks through Nacos's LongPollingService source code, showing how it extracts headers, calculates timeouts, detects configuration changes, enforces connection limits, and uses Servlet 3.0 AsyncContext to handle long‑polling without blocking threads.
This article explains the concept of graceful shutdown, outlines essential steps, examines Kubernetes pod termination and Spring Boot integration with Nacos, and provides practical optimizations—including PreStop hooks, terminationGracePeriod settings, and actuator shutdown—to ensure reliable service termination without data loss.
This article offers a detailed overview of Nacos, an open‑source service discovery and configuration platform, covering its core functions, architectural components, and modules while also providing promotional links to extensive Alibaba architecture and Java interview resources.
This article explains Nacos' advantages over Eureka, compares its Raft‑based consistency, details the Spring Cloud Alibaba suite, walks through Nacos architecture, installation, standalone and cluster modes, and provides practical examples of using Nacos as both a service registry and a configuration center in microservice projects.
This article explains how to protect Nacos configuration data by applying zero‑trust principles, covering transport encryption with TLS, storage encryption using plugins, and fine‑grained access control through authentication and RBAC, while providing practical configuration steps.
This article explains the underlying principles of Nacos as a service registry, covering registration flow, health‑checking, dynamic service awareness, the architecture diagram, key source‑code components, and how service discovery works in Spring Cloud micro‑service environments.
This article explains how to design a plug‑in architecture for a data‑governance service that can start, stop, add, or upgrade individual tasks at runtime without restarting the whole service, using a custom URLClassLoader, Spring bean registration, XXL‑Job integration, dynamic configuration updates, and a clean unload process.
The author recounts screening eight Java resumes, identifies common exaggerations, and walks through six interview questions that exposed a candidate's lack of real microservice, distributed‑system, and payment‑security experience, offering practical insights for both interviewers and applicants.
This article walks through the evolution of system architecture from monolithic to microservices, explains Spring Cloud Alibaba components, introduces Nacos for service registration and discovery, provides step‑by‑step installation and integration instructions, and includes code snippets for a Spring Boot project.
This article explains how configuration management evolves from simple local files in monolithic applications to centralized, dynamic configuration centers like Nacos for microservices, covering code examples, registration, deregistration, viewing, change subscription, and guidance on choosing a service registry.
This article explains the concept of graceful shutdown, walks through a Kubernetes pod termination flow, demonstrates a Spring Boot + Nacos example with PreStop hooks, identifies common pitfalls, and provides practical optimizations—including MQ handling, scheduled tasks, traffic control, and actuator shutdown—to achieve reliable, zero‑downtime service termination.
This article explains the concept of graceful shutdown, demonstrates it with Kubernetes‑SpringBoot‑Nacos case studies, analyzes common issues, and provides optimization strategies such as adjusting terminationGracePeriodSeconds, using PreStop hooks, handling MQ and scheduled tasks, and leveraging actuator shutdown for reliable service termination.
This article provides an in‑depth tutorial on Alibaba Sentinel, covering its core concepts, installation of the dashboard, integration with Spring Cloud microservices, detailed configuration of flow control, degrade rules, hot‑parameter limiting, system adaptive protection, custom block handlers, persistence with Nacos, and cluster flow control for high‑availability services.
This article explains the role of a microservice registration center, its core principles and workflow, and compares popular frameworks such as Eureka, Nacos, Zookeeper, and Consul to help you select the most suitable solution for your architecture.
Learn how to integrate Nacos as a dynamic configuration center to modify Java thread pool sizes at runtime, covering dependency setup, initial Nacos configuration, custom listener implementation, thread pool usage, testing, and the benefits of adaptive scaling for production systems.
This article provides a comprehensive overview of Spring Cloud Alibaba architecture, detailing monolithic, distributed, and microservice patterns, explains the evolution of system designs, introduces Nacos service discovery and registration, and includes practical code examples for installing, configuring, and using Nacos with Spring Boot.
r-nacos is a Rust‑based Nacos server that offers the same client‑SDK compatibility as the official Java version while delivering dramatically faster startup, minimal memory footprint, higher performance, and stable operation, making it ideal for development, testing, and lightweight production environments.
This article explains the concept of graceful shutdown, outlines the standard steps, and presents detailed Kubernetes, Spring Boot, and Nacos case studies, followed by optimization techniques, code examples, and practical recommendations for handling MQ, scheduled tasks, and traffic control during service termination.
This article explains the concept of graceful shutdown, outlines general steps, presents a detailed Kubernetes‑SpringBoot‑Nacos case study, discusses common pitfalls, and provides practical optimization techniques for reliable service termination in cloud‑native environments.
This comprehensive guide analyzes the core concepts, CAP trade‑offs, consensus algorithms, and practical deployment details of Zookeeper, Eureka, Nacos, Consul, and Etcd, providing concrete examples and selection criteria to help engineers and architects decide the most suitable service registry for their micro‑service environments.
This article demonstrates how to build a dynamically configurable thread pool in a Spring Cloud backend by using Nacos as a configuration center, covering dependency setup, YAML files, Java implementation, controller exposure, testing steps, and practical tips for runtime adjustments.
The solution introduces a plug‑in architecture that uses a custom URLClassLoader to load governance task JARs at runtime, registers their Spring beans and @XxlJob handlers with XXL‑Job, and provides unload logic to deregister jobs, destroy beans, and update configuration via YAML or Nacos without restarting the service.
This article explains how to implement dynamic loading, upgrading, and unloading of data‑governance tasks in a Java Spring application using a custom URLClassLoader, integrate the tasks with the XXL‑Job scheduler, manage Spring bean registration, and persist configuration changes via local YAML or Nacos.
This article demonstrates how to create a dynamically configurable thread pool in a Spring Boot backend by using Nacos as a configuration center, covering Maven dependencies, YAML configuration files, Nacos data IDs, Java implementation with listeners, a REST controller for testing, and practical verification steps.
Celebrating the Lunar New Year, this roundup shares essential Java 21 updates, Spring Boot 3.2 enhancements, domestic open‑source innovations, and other hand‑picked tools and articles, providing developers with quick links to explore new APIs, performance improvements, and cutting‑edge Java ecosystem resources.
This article explains the Nacos architecture, the principles of service registration, how Spring Cloud integrates with Nacos for automatic registration, the implementation details of NacosServiceRegistry, heartbeat mechanisms, registration via Open API/SDK, service address querying, and dynamic service discovery using HostReactor.
