This article presents a detailed walkthrough of Meizu’s real‑time push platform, covering its four‑layer architecture, high‑concurrency design, micro‑service RPC framework, power‑saving strategies, duplicate‑message handling, DNS reliability, load‑balancing tactics, monitoring setup, and gray‑release deployment.
The article examines two common MySQL master‑slave delay scenarios—slow ALTER operations and MyISAM table‑level locks—explains why they cause replication lag, and offers practical mitigation steps such as scheduling problematic SQL, isolating lagging slaves, and tuning binlog write settings.
An in‑depth overview of KISSY, Alibaba’s home‑grown front‑end framework, covering its origins, architectural layers, modular system, component library, tooling, mobile support, testing, CI, and real‑world deployment examples such as shop and product detail pages, highlighting strengths and current challenges.
The article explains Amazon’s Dynamo distributed key‑value store architecture, covering its decentralized design, consistent hashing with virtual nodes, replication strategies, quorum‑based read/write parameters, vector‑clock versioning, failure detection, hinted handoff, scaling mechanisms, and how these techniques together provide high availability, scalability, and reliability.
From a single‑machine “all‑in‑one” setup to a distributed, service‑oriented architecture, 58.com’s journey illustrates how startups can evolve their backend systems—adopting LAMP, read/write splitting, vertical splitting, caching, Java migration, and automated services—to handle traffic growth from tens of thousands to over a billion visits.
This article chronicles the architectural journey of JD’s Dongdong instant‑messaging platform, detailing its early simple polling design, subsequent performance and scalability challenges, and the progressive shifts toward service‑oriented, micro‑service, and cloud‑native architectures that support massive user growth.
A sudden shutdown of an Alibaba Cloud server revealed it had been hijacked as a bot, prompting a step‑by‑step remediation that highlights the importance of basic security hardening such as securing Redis, changing default SSH settings, and enabling cloud monitoring alerts.
The article outlines six major security design mistakes—compatibility, cost‑cutting, mixing data and code, closed designs, blacklist defenses, and neglecting security as a design goal—illustrating each with real‑world examples and offering practical recommendations to build more robust software and hardware architectures.
Redis provides a configurable maxmemory setting to limit memory usage, and offers several eviction policies—including allkeys‑lru, volatile‑lru, and random strategies—implemented via an approximate LRU algorithm whose behavior can be tuned with maxmemory‑samples, allowing administrators to balance performance and memory reclamation.
This article explains the step‑by‑step process of TLS cipher suite negotiation between browsers and servers, covering browser‑side cipher listing, server‑side configuration, the meaning of cipher names, and how the final suite is selected, with practical Wireshark and PowerShell examples.
The article presents a pattern‑based catalog of performance‑optimization techniques—such as horizontal and vertical partitioning, constant‑variable separation, locality, and sandboxing—illustrated with Meituan case studies, explaining motivations, trade‑offs, and how each pattern reduces latency, boosts throughput, and enhances availability in high‑throughput backend systems.
This guide explains how Docker handles data persistence using volumes, covering host‑directory mounts, dedicated volume containers, read‑only options, and practical commands for creating, sharing, backing up, restoring, and migrating data across containers.
This guide walks you through installing Sphinx, configuring the Read the Docs theme, generating reStructuredText from Python code, and building HTML documentation for your API, complete with project setup, conf.py tweaks, and custom module directives.
Front‑end developer Xiao Ming discovers how unit testing with TDD/BDD, Mocha, and various assertion libraries can ensure reliable Node.js deployments, prevent regressions, and enable confident refactoring, while also learning to measure coverage with Istanbul.
Content Security Policy (CSP) is a browser‑level defense that defines a whitelist of trusted sources for scripts, styles, images, and other resources, preventing malicious code injection such as XSS by blocking any content not explicitly allowed.
In this expert Q&A, Baidu’s senior big-data specialists reveal common project pitfalls, argue for Java in Hadoop-style systems, discuss MongoDB deployment, outline criteria for choosing open-source versus self-built solutions, and evaluate the viability of NewSQL/Spanner-type startups.
This article introduces the fundamental MapReduce model and Hadoop framework, explains their components such as HDFS, MapReduce, and HBase, and then examines Taobao’s large‑scale data product architecture—including storage, computation, query, and caching layers—to illustrate practical big‑data processing techniques.
Ctrip's wireless development team shares a comprehensive overview of their app's network architecture, common performance pitfalls such as DNS and TCP issues, and a series of practical optimizations—including DNS caching, quality detection, priority handling, retransmission, payload reduction, and protocol upgrades—that dramatically improved service success rates and reduced latency.
This article explains how Worktile’s team collaboration platform combines a single‑page AngularJS front‑end with Node.js, Redis, MongoDB, and ejabberd XMPP services to achieve cross‑platform access, native‑like interactions, and high‑performance real‑time updates for over 100,000 teams.
iFLY’s Mobile Speech Platform (MSP) integrates cloud‑based speech recognition and text‑to‑speech technologies to deliver high‑quality, multi‑channel voice services for Android, iOS and other devices, detailing its four‑layer architecture, core functionalities, and the role of ASR and TTS in modern human‑machine interaction.
