Sharing over a decade of architecture experience from Baidu, Alibaba, and Tencent.
This article provides a complete, step‑by‑step guide to MongoDB shell commands—including show dbs, use, db, collection operations, indexing, aggregation and statistics—complete with syntax, example outputs and practical usage notes for developers and administrators.
The article compares four microservice deployment approaches—physical servers, virtual machines, containerization with Docker, and Kubernetes clusters—detailing their implementation, advantages, drawbacks, and ideal scenarios, helping teams choose the most suitable strategy based on resource isolation, scalability, operational complexity, and team expertise.
The article explains how to build a million‑level high‑performance system by layering LVS with Keepalived for entry‑level redundancy and Nginx for flexible proxying, while adding health checks, logging, and auto‑scaling to ensure stability and rapid recovery.
This article provides a complete, step‑by‑step reference of Claude Code’s CLI commands—including interactive mode, single‑run queries, session continuation, version checking, environment diagnosis, project initialization, context management, configuration viewing, permission handling, code review, context compression, and exit procedures—each illustrated with concrete examples and expected outputs.
This article provides a step‑by‑step reference of essential ElasticSearch REST commands—including cluster health checks, node information, index management, document CRUD operations, and various search queries with examples and expected responses—helping practitioners efficiently manage and troubleshoot large ElasticSearch deployments.
This article provides a step‑by‑step reference for Kafka command‑line tools, covering version checks, topic creation, listing, describing, deletion, partition alteration, consumer‑group inspection, offset resets, producer/consumer testing, broker API version queries, cluster metadata, leader election, and log‑directory monitoring, with concrete examples and expected outputs.
This article provides a comprehensive, step‑by‑step reference of every Codex command, detailing its purpose, typical use cases, and concrete examples—from initializing the environment and configuring model parameters to generating code, debugging, testing, reviewing, and documenting projects.
This article provides a comprehensive, step‑by‑step reference of essential Nginx commands—including service control, graceful reload, log reopening, configuration validation, compile‑time options, process inspection, log monitoring, and status metrics—complete with example usages and explanations for production environments.
This article provides a thorough, image‑rich overview of Java concurrency, covering the differences between concurrency and parallelism, thread lifecycle states, various ways to create threads, thread‑pool design and workflow, the Java Memory Model, and essential JUC utilities, all illustrated with code snippets and diagrams.
This article provides a detailed reference of Claude Code’s most frequently used CLI commands, explaining each command’s purpose, usage syntax, and typical scenarios such as interactive sessions, script automation, environment health checks, and configuration management.
