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Java Baker

Java architect and Raspberry Pi enthusiast, dedicated to writing high-quality technical articles; the same name is used across major platforms.

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Latest from Java Baker

20 recent articles

Java Baker

Oct 27, 2025 · Backend Development

Master Java Rate Limiting: Guava, Sentinel, and Redisson Solutions

This article compares three Java rate‑limiting approaches—Guava RateLimiter for single‑node control, Sentinel for both single‑node and cluster scenarios, and Redisson RateLimiter for distributed limits—detailing their usage, advantages, disadvantages, and code examples to help developers choose the right solution for their traffic management needs.

GuavaJavaRedisson

0 likes · 12 min read

Master Java Rate Limiting: Guava, Sentinel, and Redisson Solutions

Java Baker

Sep 15, 2025 · Backend Development

Choosing the Right Cache Update Pattern: Cache‑Aside, Write‑Back, Read‑Through

This article systematically compares four cache update patterns—cache‑aside, asynchronous write‑back, read/write‑through, and ongoing optimizations—detailing their implementation steps, suitable scenarios, advantages, drawbacks, and practical tips such as delayed double deletion and proactive cache refreshing to balance performance and consistency.

Cache AsideConsistencyOptimization

0 likes · 9 min read

Choosing the Right Cache Update Pattern: Cache‑Aside, Write‑Back, Read‑Through

Java Baker

Aug 4, 2025 · Operations

How to Build Real‑Time and Offline Data Reconciliation for System Consistency

This article explains why cross‑system data inconsistencies occur, defines key reconciliation metrics—completeness, timeliness, and automatic repair—and provides step‑by‑step designs for both real‑time (seconds‑to‑minutes) and offline (hour‑to‑day) reconciliation, including message‑driven triggers, batch processing, and SQL examples for detecting and fixing mismatches.

Data ReconciliationReal-timeSQL

0 likes · 8 min read

How to Build Real‑Time and Offline Data Reconciliation for System Consistency

Java Baker

Jul 7, 2025 · Databases

Choosing the Right Database Schema for Dynamic Business Field Expansion

This article compares five common database extension strategies—from simple MySQL column additions to a hybrid MySQL‑HBase solution—detailing their implementation, advantages, drawbacks, and ideal scenarios, helping architects select the most scalable and maintainable design for evolving business data requirements.

HBaseMySQLSchema Evolution

0 likes · 8 min read

Choosing the Right Database Schema for Dynamic Business Field Expansion

Java Baker

Aug 28, 2022 · Backend Development

Essential Productivity Tools Every Backend Engineer Should Use

This guide introduces a curated set of diagramming, documentation, IDE, and terminal tools—including draw.io, uTools, PlantUML, IntelliJ IDEA, XMind, mdnice, GitBook, MobaXterm, and JuiceSSH—to help backend developers create design docs and diagrams more efficiently and securely.

DocumentationIDEdiagramming

0 likes · 7 min read

Essential Productivity Tools Every Backend Engineer Should Use

Java Baker

Aug 13, 2022 · Fundamentals

Unlock Java’s Power: Mastering Reflection for Dynamic Code

This article explains Java reflection’s core concepts, how the JVM dynamically loads Class objects, and provides practical examples—including field retrieval, caching strategies, and integration with Spring—to help developers harness reflection for dynamic code manipulation while avoiding common pitfalls.

JavaReflectionSpring

0 likes · 12 min read

Unlock Java’s Power: Mastering Reflection for Dynamic Code

Java Baker

Jul 11, 2022 · Backend Development

Create a 24/7 Raspberry Pi WeChat Bot with Python: Auto‑Reply, AI Chat & Camera

Learn how to turn a Raspberry Pi 4B into a continuously running WeChat robot using Python and the itchat library, covering automatic replies, AI‑powered chat via an online API, scheduled weather broadcasts, camera photo capture, and video calls with linphone, complete with full source code.

AI chatPythonRaspberry Pi

0 likes · 13 min read

Create a 24/7 Raspberry Pi WeChat Bot with Python: Auto‑Reply, AI Chat & Camera

Java Baker

Jun 12, 2022 · Operations

System Capacity Checklist: Key Metrics Every Architect Should Track

Architects should treat system capacity like a pre‑flight checklist, using this comprehensive guide to monitor resource usage across services, databases, and queues, and to define business metrics and state‑machine indicators that reveal bottlenecks and guide scaling decisions.

architecturecapacitymetrics

0 likes · 5 min read

System Capacity Checklist: Key Metrics Every Architect Should Track

Java Baker

Jun 7, 2022 · Databases

Mastering HBase RowKey Design: Principles, Use Cases, and Architecture

Learn why HBase outperforms MySQL for massive, historical data, explore key rowkey design principles such as composite keys, field ordering, length alignment, and hotspot mitigation, and see practical examples like cold‑hot data separation and transaction logs, plus a concise overview of HBase’s core architecture.

Database ArchitectureHBaseNoSQL

0 likes · 5 min read

Mastering HBase RowKey Design: Principles, Use Cases, and Architecture

Java Baker

Jun 4, 2022 · Databases

Boost Multi-Dimensional Queries with Elasticsearch: From Basics to Advanced Integration

This article explains common multi‑dimensional query scenarios, compares basic indexing tricks and data heterogeneity approaches, then details how to integrate Elasticsearch with MySQL—including architecture, data import, Java client usage, code examples, and best‑practice recommendations—for scalable, near‑real‑time search.

ElasticsearchJava ClientMulti-dimensional query

0 likes · 15 min read

Boost Multi-Dimensional Queries with Elasticsearch: From Basics to Advanced Integration