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As web applications grew in scale, monolithic architectures became unsustainable. The transition from single-tier systems to distributed service-based models became inevitable to support scalability, resilience, and agile development. Monolithic Architecture In early-stage applications with low traffic, all components—UI, business logic, and da ...

Evolution of the Dubbo Framework Origin: Alibaba open-sourced the Dubbo framework on October 27, 2011, introducing comprehensive service governance to the Java ecosystem. It quickly became a standard for many organizations outside the Alibaba ecosystem. Stagnation: Following the release of version 2.5.3 in October 2012, major development halted ...

Introduction to LFU Caching LFU (Least Frequently Used) is a caching algorithm that removes the least frequently accessed items when the cache reaches its capacity. Unlike LRU (Least Recently Used), which considers only recency, LFU prioritizes access frequency. Comparison of LFU and LRU Consider a cache with capacity 3 and the following access ...

The URL as a Configuration BusPrior to analyzing the export mechanism, understanding the role of the URL in Dubbo is essential. Unlike standard web URLs, Dubbo utilizes the URL as its universal contract and configuration bus. A typical Dubbo URL follows this structure:scheme://user:secret@host:port/context?param1=val1&param2=val2Relying on ...

Today we're going to explore an interesting load balancing algorithm from Dubbo's source code. While I encountered this in Dubbo's implementation, it's not exclusive to Dubbo—it's a general algorithm concept. You can find Go implementations in go-zero as well. The official documentation provides two diagrams illustrating these strategies. When ...

Location Reporting When the client detects a user's geographic location, it reports to the server if the locasion changes by more than 500 meters or every 5 minutes. User locasion data is stored in Elasticsearch. Dubbo Service User location functionality is implemented in a new project called my-tanhua-dubbo-es. POM Configuration <dependenci ...

Overview This tutorial covers implementing the following features: Likes, loves, and comments notification lists System announcements User profile page Chat with strangers functionality Who viewed my profile feature Notification Lists (Likes, Loves, Comments) The notification center displays interactions from other users on your content. Si ...

Measuring Website Performance Metrics Response Time: Total duration from request initiation to response reception. Concurrency: Number of simultaneous requests a system can handle. Concurrent Connections: Total TCP connections established between clients and server per second. Queries Per Second (QPS): Requests processed per second. Concurrent ...

Core Annotations (Simulating Dubbo) 1. @SPI Annotation (Marking Extension Interfaces) import java.lang.annotation.*; @Target(ElementType.TYPE) @Retention(RetentionPolicy.RUNTIME) public @interface SPI { // Default extension name String value() default ""; } 2. @Adaptive Annotation (Simplified Adaptive Methods) import java.lang.annot ...