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DeWu Technology
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DeWu Technology

A platform for sharing and discussing tech knowledge, guiding you toward the cloud of technology.

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Recent Articles

Latest from DeWu Technology

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DeWu Technology
DeWu Technology
Dec 25, 2025 · Frontend Development

Build a High‑Performance H5 PAG Player: SDK, Image Editing, Batch Synthesis

This guide details how to implement a full‑stack H5 PAG player for the “Use Basketball to Know Me” activity, covering SDK loading, canvas‑based image manipulation (drag, scale, rotate), dynamic layer and text replacement, real‑time preview synchronization, snapshot export, batch synthesis, performance tuning, and fallback strategies.

Batch ProcessingCanvasPAG
0 likes · 30 min read
Build a High‑Performance H5 PAG Player: SDK, Image Editing, Batch Synthesis
DeWu Technology
DeWu Technology
Dec 15, 2025 · Backend Development

How Go Powers High‑Concurrency, High‑Availability Systems: 5 Real‑World Scenarios

This article explores five typical high‑concurrency, high‑availability scenarios—gRPC microservice communication, real‑time WebSocket messaging, API‑gateway rate limiting and circuit breaking, Redis‑Stream task queues, and Redis RedLock distributed locks—detailing the problems, Go‑centric solutions, code implementations, and supporting theory.

GoHigh ConcurrencyWebSocket
0 likes · 47 min read
How Go Powers High‑Concurrency, High‑Availability Systems: 5 Real‑World Scenarios
DeWu Technology
DeWu Technology
Dec 8, 2025 · Artificial Intelligence

Unlocking Model Context Protocol (MCP): A Deep Dive into AI‑Database Integration

This article provides a comprehensive technical overview of the Model Context Protocol (MCP), an open‑standard JSON‑RPC 2.0 protocol that enables large language models to securely interact with external data sources, tools, and services, detailing its design, architecture, Python SDK implementation, transport mechanisms, and real‑world deployment examples such as the DW‑DBA‑MCP project.

Database IntegrationLLMMCP
0 likes · 45 min read
Unlocking Model Context Protocol (MCP): A Deep Dive into AI‑Database Integration
DeWu Technology
DeWu Technology
Nov 26, 2025 · Databases

Inside Dragonboat’s LogDB: Unified Storage Architecture and Go Optimizations

This article provides a detailed walkthrough of Dragonboat's LogDB storage layer, covering its overall architecture, unified key‑value design, memory‑reuse mechanisms with IContext, the IKVStore abstraction, Pebble initialization, event‑driven busy detection, and the sharded DB implementation, all illustrated with code snippets and diagrams.

LogDBPebbleRaft
0 likes · 21 min read
Inside Dragonboat’s LogDB: Unified Storage Architecture and Go Optimizations
DeWu Technology
DeWu Technology
Nov 19, 2025 · Databases

How Our Self‑Built Redis Evolved: Architecture, SDK, and Performance Gains

This article details the three‑year evolution of a self‑built Redis service, covering its massive scale, architectural redesign, migration from LB to a custom DRedis SDK, same‑city active‑active near‑read support, Redis‑server version upgrades, instance specifications, proxy rate‑limiting, and extensive automation that together boost performance while cutting costs.

ArchitectureAutomationCache
0 likes · 17 min read
How Our Self‑Built Redis Evolved: Architecture, SDK, and Performance Gains
DeWu Technology
DeWu Technology
Nov 10, 2025 · Databases

How TiDB v7 Upgrade Boosted Performance and Solved Real‑World Issues

This article details the TiDB upgrade journey from version 5.3.3 to 7.5.x, covering architecture, new v7 features, migration strategies, encountered problems with full‑table scans and inaccurate aggregation plans, the solutions applied, and the measurable performance and stability gains achieved after the upgrade.

Database UpgradeDistributed SQLNewSQL
0 likes · 15 min read
How TiDB v7 Upgrade Boosted Performance and Solved Real‑World Issues
DeWu Technology
DeWu Technology
Nov 5, 2025 · Backend Development

How We Cut Rule‑Update Cycle from Weeks to Days: A Full‑Stack Case Study

This article details the end‑to‑end technical redesign of an e‑commerce management‑category system, covering business pain points, a layered backend architecture, core Java modules, data‑model design, data‑warehouse computation, automated rule validation, approval workflows, and the resulting efficiency gains that shrink rule‑update cycles to just one or two days.

ArchitectureData ModelingJava
0 likes · 13 min read
How We Cut Rule‑Update Cycle from Weeks to Days: A Full‑Stack Case Study
DeWu Technology
DeWu Technology
Nov 3, 2025 · Artificial Intelligence

How Large Language Models Boost Search Relevance: A Real‑World Case Study

This article explains how a leading e‑commerce platform leveraged large language models to overcome traditional search relevance challenges, detailing the iterative workflow, model distillation, performance gains, deployment results, and future directions for smarter, more accurate product search.

AISearch Relevancee-commerce
0 likes · 10 min read
How Large Language Models Boost Search Relevance: A Real‑World Case Study
DeWu Technology
DeWu Technology
Oct 29, 2025 · Artificial Intelligence

Why Chunking Can Make or Break Your RAG System – Practical Strategies & Code

This article explains how proper document chunking—choosing the right chunk size, overlap, and structure‑aware boundaries—directly impacts the relevance, factuality, and efficiency of Retrieval‑Augmented Generation pipelines, and provides multiple Python implementations ranging from simple fixed‑length splits to semantic and hybrid approaches.

ChunkingEmbeddingLLM
0 likes · 29 min read
Why Chunking Can Make or Break Your RAG System – Practical Strategies & Code