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Architect Chen
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Architect Chen

Sharing over a decade of architecture experience from Baidu, Alibaba, and Tencent.

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Recent Articles

Latest from Architect Chen

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Architect Chen
Architect Chen
Apr 30, 2026 · Backend Development

Understanding Nginx Reverse Proxy: Detailed Principles and Configuration Guide

The article explains forward and reverse proxy concepts, walks through the key stages of Nginx reverse‑proxy processing—including TCP connection, request reception, upstream selection via proxy_pass, load‑balancing algorithms, and content forwarding—and provides a complete configuration example with header settings and load‑balancing strategies.

Backend ServersHTTPNginx
0 likes · 4 min read
Understanding Nginx Reverse Proxy: Detailed Principles and Configuration Guide
Architect Chen
Architect Chen
Apr 29, 2026 · Backend Development

The Ultimate Redis Guide: In‑Depth Overview of Architecture, Data Types, and Advanced Features

This comprehensive Redis guide covers its role as a core component in large‑scale architectures, explains common use cases, walks through installation and configuration options, details all primary data structures with commands and examples, and explores persistence, transactions, Lua scripting, replication, Sentinel, and cluster modes.

CacheData StructuresLua scripting
0 likes · 18 min read
The Ultimate Redis Guide: In‑Depth Overview of Architecture, Data Types, and Advanced Features
Architect Chen
Architect Chen
Apr 28, 2026 · Backend Development

How High Must TPS Be for a Payment System to Be Considered High‑Throughput?

The article analyzes why payment systems require far higher transactions‑per‑second than typical web apps, outlines the challenges of distributed transactions under high load, and classifies TPS levels—from 1,000 daily to over 300,000—as benchmarks, citing Alipay’s Double 11 peak as an ultra‑high example.

BackendHigh ConcurrencyTPS
0 likes · 3 min read
How High Must TPS Be for a Payment System to Be Considered High‑Throughput?
Architect Chen
Architect Chen
Apr 26, 2026 · Backend Development

What Is Nginx’s Maximum Concurrent Connections? A Complete Guide

The article explains that Nginx’s maximum concurrent connections are not a fixed number but are calculated from the worker_processes and worker_connections settings and are ultimately limited by the operating system’s file‑descriptor (ulimit) limits, providing formulas, an example configuration, and commands to verify the limits.

ConcurrencyNginxServer Configuration
0 likes · 3 min read
What Is Nginx’s Maximum Concurrent Connections? A Complete Guide
Architect Chen
Architect Chen
Apr 23, 2026 · Databases

The Most Complete Redis Configuration Guide with Illustrated Examples

This article provides a thorough walkthrough of Redis configuration, covering the location of the redis.conf file, how to list all settings with CONFIG GET *, modify parameters via CONFIG SET, and detailed explanations of common options such as bind address, port, timeout, log level, database count, daemonization, log file, client limits, memory limits, persistence settings, replication, and password protection, each illustrated with concrete command examples.

CONFIGRedisconfiguration
0 likes · 6 min read
The Most Complete Redis Configuration Guide with Illustrated Examples
Architect Chen
Architect Chen
Apr 23, 2026 · Databases

How Redis Handles 1 Million Concurrent Connections: 4 Key Techniques

Redis achieves million‑level concurrency by keeping all data in RAM, using epoll/kqueue for non‑blocking I/O, employing highly optimized data structures with O(1) or O(log N) operations, and evolving from a single‑threaded core to optional multi‑threaded I/O, boosting throughput up to 12×.

Data StructuresHigh ConcurrencyI/O Multiplexing
0 likes · 4 min read
How Redis Handles 1 Million Concurrent Connections: 4 Key Techniques