ITFLY8 Architecture Home - focused on architecture knowledge sharing and exchange, covering project management and product design. Includes large-scale distributed website architecture (high performance, high availability, caching, message queues...), design patterns, architecture patterns, big data, project management (SCRUM, PMP, Prince2), product design, and more.
This article examines strategies for low‑latency, consistent hot‑account updates under high concurrency, comparing optimistic DB locking, Redis‑based deduction with asynchronous merging, data sharding, and MQ‑driven batch processing, and also addresses read‑side solutions.
This article examines how to design a high‑performance comment system by comparing nested and flat (cover‑floor) database models, evaluating adjacency list, path enumeration, and closure table approaches, and outlining write‑asynchronous, cache‑first read strategies for millions of users.
This article outlines a practical sharding strategy for e‑commerce order systems, estimating future load, detailing user‑centric partitioning, heterogeneous designs for merchants and operators, and migration steps to achieve high‑concurrency writes and massive storage without downtime.
This article provides a comprehensive framework for evaluating system support capability by defining QPS excellence thresholds across industry benchmarks, business types, response time, resource efficiency, performance metrics, architectural guidelines, optimization tactics, and real‑world case studies, culminating in a practical calculation formula.
This guide explains what QPS is, outlines three practical methods to estimate it—including business‑scenario modeling, historical data analysis, and industry benchmarking—covers key influencing factors, shows formulas linking QPS, concurrency and response time, and recommends tools and best‑practice tips for reliable capacity planning.
This article explains how to solve interleaved log lines in multi‑threaded pods by using a TraceId stored in SLF4J MDC, propagating it via HTTP headers, adapting thread pools and Spring task decorators, and integrating SkyWalking to enrich Logback patterns for end‑to‑end request tracing.
This article outlines the essential characteristics of flash‑sale traffic and presents a comprehensive backend architecture—including Nginx, Redis, message queues, database sharding, security controls, and page optimization—to handle massive concurrent requests while ensuring reliability and scalability.
This article explains the definition of technical architecture, outlines its core components such as technical services, components, infrastructure and selection, and illustrates how it supports business, application, and data architectures through layered system diagrams and practical examples.
This article explains the definition of application architecture, distinguishes enterprise‑level and system‑level designs, outlines its core components—application services, structure, and interaction—and illustrates layered architectures and service interactions with diagrams, helping readers understand how to translate business architecture into concrete IT solutions.
This article outlines a step‑by‑step approach to mastering source‑code reading—starting from using the software, understanding its principles and architecture, learning its workflows, and finally dissecting implementations—to help developers answer interview questions and deepen their technical expertise.
