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Cloud Architecture

Focuses on cloud‑native and distributed architecture engineering, sharing practical solutions and lessons learned. Covers microservice governance, Kubernetes, observability, and stability engineering to help your systems run stable, fast, and cost‑effectively.

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Latest from Cloud Architecture

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Cloud Architecture

Jun 28, 2026 · Databases

PostgreSQL vs MongoDB: Architecture Selection & Hybrid Implementation Guide

This article provides a comprehensive, enterprise‑level comparison of PostgreSQL and MongoDB, outlining when each database fits business needs, a five‑dimensional decision framework, mixed‑architecture patterns, practical schema and indexing examples, and guidance on performance, stability, and migration considerations.

Hybrid ArchitectureMongoDBPostgreSQL

0 likes · 36 min read

PostgreSQL vs MongoDB: Architecture Selection & Hybrid Implementation Guide

Cloud Architecture

Jun 28, 2026 · Backend Development

Building a Production‑Grade Kafka Reverse Proxy with Nginx + Lua for Scalable, Auditable Message Access

The article explains why a simple TCP proxy is insufficient for Kafka, and presents a production‑ready reverse‑proxy architecture built on Nginx stream and Lua that adds metadata rewriting, multi‑tenant quota, TLS termination, dynamic routing, observability, and graceful degradation to achieve scalable, auditable message ingestion.

KafkaLuaMessage Governance

0 likes · 33 min read

Building a Production‑Grade Kafka Reverse Proxy with Nginx + Lua for Scalable, Auditable Message Access

Cloud Architecture

Jun 27, 2026 · Backend Development

Spring Multi-Level Cache: Production Design & Management with Caffeine + Redis

Spring’s multi‑level caching combines Caffeine’s ultra‑fast local store with Redis’s distributed capacity to tackle high‑concurrency challenges such as read amplification, cache storms, consistency, and capacity management, offering a production‑grade design, implementation details, risk boundaries, and evolution paths for robust Spring applications.

CaffeineMulti-level CacheRedis

0 likes · 36 min read

Spring Multi-Level Cache: Production Design & Management with Caffeine + Redis

Cloud Architecture

Jun 27, 2026 · Backend Development

Enterprise Messaging System Deep Dive: Core Engine to High‑Concurrency

This guide explains how enterprise messaging systems reliably propagate state changes across distributed services, covering core concepts, outbox patterns, topic/tag modeling, consumer idempotency, dead‑letter handling, high‑concurrency engineering, monitoring, and Kubernetes deployment to build a production‑grade, observable platform.

KafkaObservabilityOutbox

0 likes · 44 min read

Enterprise Messaging System Deep Dive: Core Engine to High‑Concurrency

Cloud Architecture

Jun 26, 2026 · Databases

PostgreSQL Backup & Replication Guide: WAL Basics to Production‑Ready HA, DR, and Recovery

This comprehensive guide walks through PostgreSQL's backup and replication architecture, explaining WAL fundamentals, the distinction between backup, high‑availability, disaster‑recovery and CDC, and provides step‑by‑step configurations, performance trade‑offs, monitoring queries, Kubernetes deployment tips, and practical recovery‑drill procedures for production environments.

CDCHAPITR

0 likes · 40 min read

PostgreSQL Backup & Replication Guide: WAL Basics to Production‑Ready HA, DR, and Recovery

Cloud Architecture

Jun 26, 2026 · Information Security

OAuth 2.0 at Billion-Scale: Unified Auth Center Architecture & Pitfall Guide

This article details how to design a unified authentication center that can handle billions of OAuth 2.0 requests, covering layered architecture, token issuance and revocation, refresh‑token rotation, gateway validation, key management, and practical pitfalls to ensure secure, high‑performance identity traffic in production.

OAuth 2.0Refresh Token Rotationauthentication

0 likes · 46 min read

OAuth 2.0 at Billion-Scale: Unified Auth Center Architecture & Pitfall Guide

Cloud Architecture

Jun 25, 2026 · Backend Development

SpringBoot + WeChat Pay V3: Architecture for Million-Concurrent Payments

The article explains how to build a production‑grade, million‑concurrent payment pipeline with SpringBoot and WeChat Pay V3, covering the new security model, state‑machine design, idempotent handling, decoupled architecture, compensation mechanisms, and operational best practices such as connection‑pool tuning, observability, and fault‑tolerant deployment.

ObservabilitySpringBootWeChat Pay

0 likes · 56 min read

SpringBoot + WeChat Pay V3: Architecture for Million-Concurrent Payments

Cloud Architecture

Jun 25, 2026 · Backend Development

Four Production‑Grade Defenses Against Redis Cache Penetration in High‑Concurrency Microservices

The article explains how non‑existent data amplified by high concurrency can cause cache penetration, distinguishes it from cache breakdown and avalanche, and presents a layered defense—entry validation, Bloom filter existence checks, negative caching, and concurrent‑request convergence—plus practical code, metrics, and operational checklists for robust microservice deployments.

Bloom FilterCache PenetrationDistributed Lock

0 likes · 28 min read

Four Production‑Grade Defenses Against Redis Cache Penetration in High‑Concurrency Microservices

Cloud Architecture

Jun 24, 2026 · Backend Development

Four Levels of Concurrency Control: Optimistic Locks to Message Queues for Million‑QPS

High‑concurrency systems must go beyond simple locking; the article breaks down four progressive strategies—optimistic locking, database pessimistic locking, Redis distributed locks, and finally message‑queue serialization—explaining their trade‑offs, implementation details, pitfalls, and how to combine them into a layered architecture that sustains million‑QPS workloads with consistency, throughput, and recoverability.

Concurrency ControlMessage QueueOptimistic Lock

0 likes · 32 min read

Four Levels of Concurrency Control: Optimistic Locks to Message Queues for Million‑QPS

Cloud Architecture

Jun 24, 2026 · Backend Development

Spring Boot Alipay Integration: A Production-Ready Solution for High Concurrency and Financial Consistency

This article explains how to build a production‑grade Alipay payment subsystem with Spring Boot that goes beyond simple API calls, covering asynchronous flow, idempotent notification handling, state‑machine design, outbox event delivery, high‑concurrency safeguards, and end‑to‑end reconciliation.

AlipayObservabilityOutbox

0 likes · 32 min read

Spring Boot Alipay Integration: A Production-Ready Solution for High Concurrency and Financial Consistency