Sharing over a decade of architecture experience from Baidu, Alibaba, and Tencent.
This guide explains how to achieve million‑level concurrent request handling by combining Nginx, LVS, and Keepalived, detailing the architecture layers, load‑balancing design, high‑availability configuration, and practical sample configurations for each component in modern large‑scale web services.
This article explains Docker’s three fundamental OS‑level mechanisms—Namespaces, Cgroups, and UnionFS—detailing how they provide process, network, and filesystem isolation, resource management, and layered image storage for efficient container operation.
Single Sign-On (SSO) lets users authenticate once and automatically gain access to all trusted applications, eliminating repeated logins and streamlining user experience across heterogeneous systems such as e‑commerce, payment, and collaboration platforms.
This guide compiles the most frequently used Docker commands, covering version checks, image management, container lifecycle, network and volume operations, as well as cleanup techniques, providing a concise reference for developers working with cloud‑native container environments.
This guide explains how to avoid duplicate message consumption in Kafka by designing unique identifiers, implementing consumer-side idempotence with deduplication tables, leveraging Kafka’s transactional features, and establishing system-level safeguards and monitoring to ensure reliable, exactly‑once processing.
This article explains what deep copy is, why it is essential for avoiding side‑effects in mutable data structures, outlines its practical benefits such as safe snapshots and independent cloning of complex objects, and provides a complete JavaScript implementation that handles primitives, circular references, and special built‑in types.
This guide explains how to identify and resolve sudden latency increases in running services by collecting key metrics, focusing on GC behavior, thread and lock analysis, CPU and system resources, and using diagnostic tools such as jstat, jstack, and distributed tracing.
This article compares three common distributed ID generation methods—database auto‑increment, UUID, and Snowflake—detailing their architectures, advantages, drawbacks, and ideal use‑cases to help engineers select the most suitable approach for their systems.
This article explains the fundamentals of Single Sign-On (SSO), detailing its centralized authentication principle, the roles of CAS Server, CAS Client, and browser, and walks through the complete login flow with diagrams and code snippets for distributed systems.
This guide explains how to systematically analyze and optimize Java garbage‑collection pauses—cutting typical 200 ms stalls down to around 20 ms—by enabling detailed logs, selecting the right collector, tuning heap and generation settings, minimizing allocation, handling large objects, and balancing GC threads with CPU resources.
