E‑commerce, SaaS, AI architect; DDD enthusiast; SKILL enthusiast
The article outlines five essential dimensions—data consistency, isolation, extensibility, business sequencing, and high‑concurrency handling—explaining why each matters, illustrating them with concrete examples, and showing how to evaluate and improve a technical design accordingly.
This article dissects MySQL's InnoDB storage engine by first exposing the internal page layout, then explaining the clustered index organization, and finally detailing the slot mechanism used for intra‑page queries, while illustrating insertion strategies and space‑reclamation techniques.
The article explains why PRD analysis is crucial for developers, outlines three practical steps—clarifying project goals, continuously focusing on the right work, and designing first—and provides concrete questions, domain‑modeling techniques, and activity‑diagram examples to help technical leads turn product solutions into solid technical designs.
The article explains CPS (Cost Per Sale) as a performance‑based advertising model used by e‑commerce platforms, describes how promoters earn commissions, buyers receive hidden coupons, and outlines two contrasting coupon‑community operation methods—manual curation and automated blasting—while highlighting their benefits, drawbacks, and the broader traffic‑driven nature of the CPS ecosystem.
This article introduces Domain‑Driven Design, explains its strategic and tactical layers, walks through domain‑model discovery methods such as Event Storming and the Four‑Color model, details aggregate design, cross‑database query solutions, CQRS, Event Sourcing, and several clean‑architecture styles to help engineers build maintainable, business‑driven systems.
The article explains why architects need to master mind maps, UML diagrams (class, sequence, activity, state) and architecture diagrams, outlines key principles for each, provides concrete examples and visual illustrations, and shares practical insights on using these diagrams to improve design communication and business alignment.
The article presents a three‑stage "Gong" theory for tech career growth, explaining how early effort drives advancement, while later stages rely more on opportunity, and outlines practical actions for each phase from junior developer to senior leadership.
The article examines the so‑called 35‑year programmer “curse” through senior developers’ interviews, analyzes its roots in industry practices like 996, and proposes a three‑step framework—leveraging personal advantages, continuous deepening, and self‑cultivation—to become a versatile “π‑type” talent and sustain a thriving career beyond age 35.
This guide explains how to install and use the open‑source “IDE Eval Reset” plugin from plugins.zhile.io to extend the 30‑day trial of any JetBrains IDE on macOS or Windows, including setup steps, manual and auto‑reset options, and supported products.
After a week-long series of experiments measuring TCP connections in various states—including ESTABLISH, client‑to‑server, server‑to‑client, and non‑ESTABLISH scenarios—the author quantifies per‑connection memory usage and shows how modern kernels reclaim buffers and reduce overhead, especially for TIME_WAIT.
