All Articles

145983 articles · Page 7232 of 7300

Aug 10, 2015 · Cloud Native

Why Docker Dominates OS-Level Virtualization: History, Stats, and Future Threats

The article reviews Docker’s role in OS‑level virtualization, tracing its history, current market dominance, community statistics, common use cases, future directions, acquisition strategy, and potential threats from competitors and acquisitions, while summarizing insights from recent interviews with Docker users and experts.

Cloud NativeDevOpsOS virtualization

0 likes · 9 min read

Why Docker Dominates OS-Level Virtualization: History, Stats, and Future Threats

WeChat Client Technology Team

Aug 10, 2015 · Mobile Development

Overcoming Android’s 64K Method Limit with Multidex: Real‑World Strategies

This article examines the 64K method and linear memory constraints in large Android applications, compares the official multidex support library with custom dex‑splitting approaches used by WeChat, QQ, and Facebook, and proposes a testing‑based loading scheme that minimizes startup latency while keeping the primary dex lightweight.

AndroidDex SplittingMultidex

0 likes · 14 min read

Overcoming Android’s 64K Method Limit with Multidex: Real‑World Strategies

Practical DevOps Architecture

Aug 10, 2015 · Information Security

Implementing an ACL Using Command Line and Web Interface

This guide demonstrates how to configure an access control list (ACL) with specific deny rules, traffic classifiers, behaviors, and policies on an internal interface, and notes that the same setup can be created easily via a web page.

ACLConfigurationTraffic Policy

0 likes · 1 min read

Implementing an ACL Using Command Line and Web Interface

Java High-Performance Architecture

Aug 9, 2015 · Backend Development

Understanding Nginx Architecture: Core, Modules, and Request Flow

This article explains Nginx’s lightweight kernel and modular design, detailing how the core, basic, and third‑party modules are organized by structure and function, and describing the roles of handlers, filters, and proxies in processing HTTP requests and responses.

ModulesWeb Serverarchitecture

0 likes · 3 min read

Understanding Nginx Architecture: Core, Modules, and Request Flow

Art of Distributed System Architecture Design

Aug 9, 2015 · Information Security

Understanding HTTP Hijacking and DNS Hijacking: Causes, Impacts, and Countermeasures

The article explains what HTTP and DNS hijacking are, illustrates real‑world examples, analyzes their causes and harms, and presents practical anti‑hijacking techniques such as data validation, HttpDNS, operator cache handling, and logging systems.

DNS hijackingHTTP hijackinganti-hijacking

0 likes · 11 min read

Understanding HTTP Hijacking and DNS Hijacking: Causes, Impacts, and Countermeasures

Java High-Performance Architecture

Aug 9, 2015 · Operations

Varnish vs Squid: Which Reverse Proxy Delivers Faster, More Stable Caching?

Varnish and Squid are open‑source reverse proxy cache servers, but Varnish generally outperforms Squid with higher stability, faster memory‑based caching, greater concurrent connections, and regex‑based cache invalidation, while its higher CPU, I/O, and memory usage and loss of cache on failure can be drawbacks.

SquidVarnishcaching

0 likes · 2 min read

Varnish vs Squid: Which Reverse Proxy Delivers Faster, More Stable Caching?

21CTO

Aug 8, 2015 · Databases

Master MySQL: From Table Design to Scalable, High‑Performance Architecture

This article walks through the full lifecycle of a MySQL database—from initial table design and single‑server deployment to performance tuning, kernel and hardware tweaks, scaling with replication, caching, sharding, partitioning, and essential maintenance tasks such as monitoring, slow‑query logging, backup and repair.

BackupMySQLScaling

0 likes · 18 min read

Master MySQL: From Table Design to Scalable, High‑Performance Architecture

21CTO

Aug 8, 2015 · Artificial Intelligence

How to Achieve High-Accuracy GPS Map Matching: Algorithms, Data, and Implementation

This article reviews map‑matching challenges, surveys algorithm categories, describes the ST‑Matching method and its implementation details, and presents experimental results using a large road network and GPS data to achieve high‑accuracy trajectory alignment.

AlgorithmGPSST-Matching

0 likes · 8 min read

How to Achieve High-Accuracy GPS Map Matching: Algorithms, Data, and Implementation

21CTO

Aug 8, 2015 · Fundamentals

Why Does Learning to Code Feel So Hard? A Personal Exploration

The article reflects on the common frustrations of learning programming, examining how intimidating environments, condescending attitudes, outdated brain‑hemisphere myths, and unrealistic expectations make coding seem daunting, while offering practical mindset shifts and incremental learning strategies to overcome these hurdles.

Learningcoding challengeseducation

0 likes · 8 min read

Why Does Learning to Code Feel So Hard? A Personal Exploration

21CTO

Aug 8, 2015 · Backend Development

How to Build Horizontally Scalable Systems: Load Balancing, Caching, and More

The article distills Will Larson’s insights on designing horizontally scalable systems, covering linear capacity growth, redundancy, load‑balancing strategies, caching layers, CDN usage, offline processing with message queues, Map‑Reduce for big data, and the benefits of introducing a platform layer to improve robustness and reusability.

Load Balancingcachingdistributed systems

0 likes · 12 min read

How to Build Horizontally Scalable Systems: Load Balancing, Caching, and More

21CTO

Aug 8, 2015 · Backend Development

9 Essential PHP Practices Every Developer Should Master

This article shares nine practical PHP tips—from security fundamentals like input filtering and output escaping, to efficient coding tricks such as using ternary operators, caching, and modern frameworks—aimed at helping developers write safer, cleaner, and faster backend code.

backendbest practicescoding style

0 likes · 7 min read

9 Essential PHP Practices Every Developer Should Master

Art of Distributed System Architecture Design

Aug 8, 2015 · Operations

Automatic Anomaly Detection for Server Failures Using DBSCAN at Netflix

This article describes how Netflix’s technical operations team built an automatic anomaly‑detection system based on the DBSCAN clustering algorithm to identify subtly failing servers from time‑series error‑rate data, evaluate its effectiveness, and discuss practical deployment considerations.

ClusteringDBSCANNetflix

0 likes · 9 min read

Automatic Anomaly Detection for Server Failures Using DBSCAN at Netflix

High Availability Architecture

Aug 8, 2015 · Information Security

Managing HTTPS Certificates When Using Third‑Party CDN Services

The article explains how HTTPS works, why traditional CDN architectures based on CNAME aliases can conflict with HTTPS certificate validation, and compares two common approaches—custom certificates and shared certificates—highlighting their security implications and performance considerations for web operators.

CDNCertificate ManagementHTTPS

0 likes · 6 min read

Managing HTTPS Certificates When Using Third‑Party CDN Services

Qunar Tech Salon

Aug 8, 2015 · Fundamentals

Monte Carlo Method: Five Illustrative Examples

This article introduces the Monte Carlo method and demonstrates its versatility through five examples covering π estimation, integral calculation, traffic‑jam simulation, product thickness reliability, and securities market profit forecasting, highlighting its simplicity, power, and broad applicability.

Computational MathematicsMonte CarloSimulation

0 likes · 6 min read

Monte Carlo Method: Five Illustrative Examples

Java High-Performance Architecture

Aug 7, 2015 · Databases

Boost MySQL Connection Performance with Thread Cache: How It Works & Tuning Tips

MySQL uses a Thread Cache pool to store idle connection threads, dramatically speeding up client connection creation; understanding parameters like thread_cache_size and thread_stack, monitoring cache hit rates, and proper tuning can keep the hit rate around 90% for optimal performance.

MySQLThread CacheThread Stack

0 likes · 3 min read

Boost MySQL Connection Performance with Thread Cache: How It Works & Tuning Tips

Art of Distributed System Architecture Design

Aug 7, 2015 · Frontend Development

How Qiniu Built a Robust Front‑End Testing Workflow with Karma, Jasmine, and Sinon

This article details Qiniu's evolution from no testing to a comprehensive front‑end testing strategy using Selenium, Karma, Jasmine, AngularJS, and Sinon, covering early challenges, unit‑test design, tool configuration, mock data handling, and the tangible benefits for code quality and maintenance.

AngularJSFrontend TestingJasmine

0 likes · 12 min read

How Qiniu Built a Robust Front‑End Testing Workflow with Karma, Jasmine, and Sinon

High Availability Architecture

Aug 7, 2015 · Backend Development

Highlights from High‑Availability Architecture Discussions: Plugins, Kanban Tools, Scheduling Services, Massive Tables, and ID Generation

This article compiles recent high‑availability architecture discussions covering plugin‑based system design, simple kanban tools, independent scheduling services, challenges of managing 60‑billion‑row tables, and the trade‑offs between UUIDs and custom distributed ID generators, offering practical insights for backend engineers.

High AvailabilitySchedulingarchitecture

0 likes · 7 min read

Highlights from High‑Availability Architecture Discussions: Plugins, Kanban Tools, Scheduling Services, Massive Tables, and ID Generation

MaGe Linux Operations

Aug 7, 2015 · Operations

How to Measure Network Bandwidth and Latency with qperf

This guide explains why bandwidth and latency matter for network servers, introduces the qperf tool, shows how to install and run it on Linux, and demonstrates advanced options for testing different message sizes and protocols to uncover performance bottlenecks.

Linux networkingNetwork Performancebandwidth measurement

0 likes · 7 min read

How to Measure Network Bandwidth and Latency with qperf

JD.com Experience Design Center

Aug 7, 2015 · Frontend Development

Choosing the Right Front‑End Framework: AngularJS vs Backbone.js vs Ember.js

This article compares three popular front‑end frameworks—AngularJS, Backbone.js, and Ember.js—by examining their history, community support, file size, templating approaches, strengths, weaknesses, and overall suitability for different web projects.

AngularJSBackbone.jsEmber.js

0 likes · 8 min read

Choosing the Right Front‑End Framework: AngularJS vs Backbone.js vs Ember.js

Java High-Performance Architecture

Aug 7, 2015 · Databases

Optimizing MySQL: Key Parameters for Max Connections and Performance

This guide explains the most important MySQL configuration variables—max_connections, max_user_connections, net_buffer_length, max_allowed_packet, and back_log—detailing how each affects concurrency, network efficiency, and overall database performance, with practical sizing recommendations.

ConfigurationMySQLconnections

0 likes · 3 min read

Optimizing MySQL: Key Parameters for Max Connections and Performance