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High Availability Architecture
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High Availability Architecture

Official account for High Availability Architecture.

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Recent Articles

Latest from High Availability Architecture

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High Availability Architecture
High Availability Architecture
Jan 25, 2024 · Backend Development

Scaling a System from Zero to One Million Users: Architecture, Load Balancing, Caching, and Database Replication

This article explains how to evolve a single‑server application into a highly available, horizontally scalable system that can serve over a million users by introducing load balancers, database replication, caching layers, CDNs, stateless network design, multi‑data‑center deployment, and message queues.

CDNScalabilitydatabase replication
0 likes · 26 min read
Scaling a System from Zero to One Million Users: Architecture, Load Balancing, Caching, and Database Replication
High Availability Architecture
High Availability Architecture
Jan 17, 2024 · Backend Development

Rate Limiting Algorithms: Fixed Window, Sliding Window, Leaky Bucket, and Token Bucket – Principles, Java Implementations, Pros & Cons

This article explains why rate limiting is essential for high‑concurrency systems, defines rate limiting, introduces four common algorithms (fixed‑window, sliding‑window, leaky‑bucket, token‑bucket), provides Java code examples for each, compares their advantages and disadvantages, and shows practical usage with Guava's RateLimiter and AOP annotations.

AOPJavaalgorithm
0 likes · 17 min read
Rate Limiting Algorithms: Fixed Window, Sliding Window, Leaky Bucket, and Token Bucket – Principles, Java Implementations, Pros & Cons
High Availability Architecture
High Availability Architecture
Jan 9, 2024 · Operations

AIOps Practices for Incident Management at Meituan: From Risk Prevention to Post‑Operation

This article presents Meituan's two‑year exploration of AIOps in incident management, detailing risk‑prevention change detection, real‑time anomaly discovery, automated root‑cause diagnosis, multi‑dimensional KPI analysis, and similar‑event recommendation, while sharing architectural designs, algorithmic techniques, performance results, and future directions.

Anomaly DetectionIncident ManagementMachine Learning
0 likes · 24 min read
AIOps Practices for Incident Management at Meituan: From Risk Prevention to Post‑Operation
High Availability Architecture
High Availability Architecture
Jan 4, 2024 · Backend Development

Refactoring and Optimizing Tencent News Backend Service: Reducing Technical Debt, Improving Efficiency, and Enhancing Stability

This article details the challenges of Tencent News' legacy backend page service, including high code debt, low development efficiency, and poor stability, and describes the systematic refactoring, configuration-driven redesign, performance optimization, and tooling (xhprof, Xdebug, expr) employed to improve maintainability, scalability, and reliability.

Configuration ManagementPHPbackend
0 likes · 14 min read
Refactoring and Optimizing Tencent News Backend Service: Reducing Technical Debt, Improving Efficiency, and Enhancing Stability
High Availability Architecture
High Availability Architecture
Dec 20, 2023 · Information Security

API Anti‑Crawling and Security Architecture: Risk Detection, Strategy, and Effectiveness at Bilibili

This article details Bilibili's comprehensive anti‑crawling system, covering the background of API abuse, the data‑flow framework, risk perception, strategy iteration, verification mechanisms, gateway signing design, and the measurable impact on normal and special‑case interfaces.

BilibiliRisk Detectionanti‑crawling
0 likes · 19 min read
API Anti‑Crawling and Security Architecture: Risk Detection, Strategy, and Effectiveness at Bilibili
High Availability Architecture
High Availability Architecture
Dec 11, 2023 · Backend Development

Domain-Driven Design: Core Concepts, Goals, and Key Methods

Domain-Driven Design (DDD) is a methodology for tackling software complexity by aligning business, system, and organizational structures through strategic and tactical modeling, using techniques such as metaphors, layering, refinement, abstraction, bounded contexts, and a ubiquitous language, illustrated with real-world Tencent video system case studies.

DDDDomain-Driven Designmodeling
0 likes · 10 min read
Domain-Driven Design: Core Concepts, Goals, and Key Methods
High Availability Architecture
High Availability Architecture
Nov 2, 2023 · Backend Development

tRPC: A Plugin‑Based Backend RPC Framework for Cloud‑Native Environments

tRPC is a highly extensible, plugin‑driven backend RPC framework designed to unify disparate service stacks, support cloud‑native components, and provide cross‑language, multi‑protocol, and streaming capabilities while delivering strong performance and easy integration for large‑scale enterprises.

Cloud NativeMicroservicesPerformance
0 likes · 7 min read
tRPC: A Plugin‑Based Backend RPC Framework for Cloud‑Native Environments
High Availability Architecture
High Availability Architecture
Sep 21, 2023 · Backend Development

Content Ingestion System Refactoring: From Microservices to a High‑Performance Monolithic Plugin Architecture

The article details the comprehensive redesign of QQ Browser's content ingestion platform, highlighting the shortcomings of the legacy micro‑service architecture, the migration to a single‑process monolithic design with a plugin framework, fault‑tolerant Kafka integration, thread separation, memory‑allocator improvements, and the resulting dramatic gains in throughput, latency, CPU utilization, and development efficiency.

backendplugin architecture
0 likes · 19 min read
Content Ingestion System Refactoring: From Microservices to a High‑Performance Monolithic Plugin Architecture
High Availability Architecture
High Availability Architecture
Sep 12, 2023 · Frontend Development

AI‑Driven Development (AIDD) of a WeChat Mini‑Program Frontend

The article describes how the author used ChatGPT to generate over 5,000 lines of code for a WeChat mini‑program community app, outlining the AI‑Driven Development (AIDD) workflow, detailed login and post‑list module implementations, multiple iteration cycles, code snippets, and reflections on efficiency and reuse.

AI-driven developmentWeChat Mini Programcode generation
0 likes · 13 min read
AI‑Driven Development (AIDD) of a WeChat Mini‑Program Frontend
High Availability Architecture
High Availability Architecture
Aug 30, 2023 · Backend Development

Diagnosing and Optimizing JVM Memory Issues in a Core Service

This article details the identification, analysis, and resolution of JVM memory problems in a core music metadata service, covering GC tuning, large‑object handling, fault‑tolerance strategies, custom Dubbo codec monitoring, and non‑intrusive memory object tracking to improve performance and stability.

DubboJVMMemory Optimization
0 likes · 14 min read
Diagnosing and Optimizing JVM Memory Issues in a Core Service