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This article explains the principles behind Prometheus alerts, when they trigger, why they sometimes stay silent, and how Alertmanager’s routing tree and notification pipeline work together to manage alert noise, grouping, silencing, and deduplication.
The article shares a senior architect's insights on why engineers and leaders must perform code reviews, how to avoid common pitfalls such as duplicated code, premature optimization, over‑encapsulation, and lack of design, and provides concrete best‑practice guidelines and Go code examples to improve software quality.
Dongle is a lightweight, semantic Go library that offers extensive encoding/decoding capabilities and a full suite of encryption, decryption, and hashing algorithms, making it a developer‑friendly tool for data transformation and security tasks.
This article presents a comprehensive engineering guide for building a high‑performance e‑commerce search engine with Go (Kratos), Elasticsearch/OpenSearch, Redis, MySQL, and Kafka, covering architecture, index construction, query processing, ranking, user‑guidance features, and future extensions such as recommendation and visual search.
Facing a challenge of managing roughly one million server-side images and 180 client images, the TOOSIMPLE team built a high-performance backend using fingerprinting, parallel processing, mmap-SSE2 acceleration, and sparsemap indexing, achieving sub-second response times while ensuring correct ordered display.
This article examines how the mic‑queue list in a live‑streaming app caused heavy server load due to three‑second polling, and details a systematic performance‑optimization process—including analysis, reducing I/O, employing Go’s singleflight caching, and switching JSON libraries—to cut resource usage by up to 60% while preserving user experience.
This article describes the design, hardware and software setup, implementation, testing phases, and performance analysis of a Go‑based backend system that simulates a Spring Festival red‑envelope service capable of handling up to 10 billion requests with peak loads of 60 k QPS per server.
This extensive article discusses essential software engineering concepts such as code review value, architectural principles, SOLID, dependency inversion, documentation practices, testing strategies, and practical guidelines for writing maintainable, decoupled, and self‑explanatory code across various programming languages.
The article argues that code review is essential for software quality, critiques common shortcomings in engineering practice, and presents principles such as simplicity, composition, transparency, and disciplined logging, illustrated with Go code examples, to guide developers toward maintainable, scalable backend systems.
This article surveys the essential Go command‑line utilities—including go help, get, build, install, fmt, env, test, and the extensive go tool suite such as pprof, trace, vet, and doc—while also highlighting popular third‑party tools like Delve, staticcheck, goconvey, go‑swagger, and others for debugging, testing, linting, and performance analysis.