10 years of front‑line experience at leading firms (Xiaomi, Baidu, Meituan) in development, architecture, and management; discusses technology and life.
The author details a four‑hour, AI‑driven process that replicates the MDNice paid editor—including theme support, cross‑platform copy, AI error correction, and auto‑publish—while spending roughly 1 billion tokens, ultimately avoiding the $98 annual subscription.
The author shares a week‑long experiment that builds a personal knowledge base, extracts stylistic traits, and applies a three‑step Blueprint‑Manuscript‑Polish workflow with detailed prompts, enabling AI to generate WeChat posts that retain the writer’s unique voice.
The article walks through the author's step‑by‑step design and deployment of a layered, multi‑agent personal AI system using OpenClaw, covering problem motivation, role decomposition, implementation pitfalls, and concrete examples such as health tracking and knowledge management.
In three months the author recruited a 20‑person Go team in Wuhan, managed simultaneous business handover and ongoing delivery, coordinated demand across three product groups, and reflected on the challenges, collaboration tactics, and personal growth experienced throughout the process.
The article explains the principles and benefits of distributed tracing, introduces OpenTracing standards, details SkyWalking’s architecture and sampling strategies, compares its performance with Zipkin and Pinpoint, and shares practical implementation experiences and custom plugin development within a micro‑service environment.
This article analyzes multiple engineering solutions for automatically cancelling orders after the payment timeout, covering single‑machine and cluster scheduled‑task designs (Quartz, ElasticJob, XXL‑JOB), delayed‑message techniques (RocketMQ, custom delay service, Redis), and essential concurrency and monitoring best practices.
The article defines what a "small" frontline leader is, presents a five‑dimensional evaluation model, outlines three core practices—charisma, rewards & punishments, and talent management—and provides strategic and tactical guidance, communication techniques, and execution tips for engineers stepping into first‑line leadership.
This article systematically explains epoll’s internal data structures, how the protocol stack notifies it, the locking strategy for thread safety, the differences between edge‑triggered and level‑triggered modes, and why it outperforms select/poll in high‑concurrency Linux I/O.
The article distills key concepts from Yu Jun’s book, outlining a product manager’s four core duties, user and transaction models, the relationship between enterprise, user and product, marginal economics, decision‑making frameworks, and practical guidance for selecting and growing product managers.
This article compares eight ways to implement retry logic for remote API calls—including simple loops, recursion, Apache HttpClient settings, Spring Retry, Resilience4j, a custom utility, thread‑pool asynchronous retries, and message‑queue based retries—while outlining best‑practice guidelines such as idempotency, retry limits, and concurrency control.
