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Ray's Galactic Tech

Practice together, never alone. We cover programming languages, development tools, learning methods, and pitfall notes. We simplify complex topics, guiding you from beginner to advanced. Weekly practical content—let's grow together!

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Latest from Ray's Galactic Tech

100 recent articles max

Ray's Galactic Tech

Aug 5, 2026 · Backend Development

Mastering Go Concurrency: From Worker Pools to Production‑Ready Pipelines

This article analyzes why naïve goroutine usage fails in high‑throughput microservices, outlines five common concurrency pitfalls, and walks through a complete production‑grade Go pipeline—covering worker pools, semaphores, fan‑out/fan‑in, back‑pressure, error classification, observability, and step‑by‑step code implementation for an order‑processing service.

BackpressureGoWorker Pool

0 likes · 29 min read

Mastering Go Concurrency: From Worker Pools to Production‑Ready Pipelines

Ray's Galactic Tech

Aug 4, 2026 · Cloud Native

Ditch Glue Code: Skill‑Based Distributed Engine for Multi‑API Orchestration and Real‑Time DB Checks

The article analyzes why traditional script‑based API tests fail in microservice environments and proposes a Skill‑oriented, DAG‑driven distributed automation engine that unifies HTTP calls, database verification, message validation, retries, and observability into a scalable, governable platform.

AutomationCloud NativeDAG

0 likes · 37 min read

Ditch Glue Code: Skill‑Based Distributed Engine for Multi‑API Orchestration and Real‑Time DB Checks

Ray's Galactic Tech

Aug 4, 2026 · Backend Development

Spring Boot & Netty MQTT Platform: Multi‑Protocol and Modular Design

This guide walks through building a high‑performance, scalable MQTT access gateway for IoT using Spring Boot for service orchestration and Netty for connection handling, covering protocol fundamentals, modular architecture, multi‑protocol adaptation, session management, high‑concurrency optimizations, clustering, observability, and deployment best practices.

IoTKubernetesMQTT

0 likes · 40 min read

Spring Boot & Netty MQTT Platform: Multi‑Protocol and Modular Design

Ray's Galactic Tech

Aug 3, 2026 · Information Security

Are You Implementing Field-Level Encryption Correctly? Best Practices Explained

This article examines common pitfalls and misconceptions in field‑level encryption, explains why AES‑GCM and proper AAD are essential, outlines threat modeling, key hierarchy, blind indexing for searchable data, migration strategies, key rotation, performance considerations, and secure integration with MyBatis, Kubernetes, and Vault.

AES-GCMKubernetesMyBatis

0 likes · 49 min read

Are You Implementing Field-Level Encryption Correctly? Best Practices Explained

Ray's Galactic Tech

Aug 1, 2026 · Databases

Beyond CRUD: Full‑Scale Production Guide for MySQL 8.4 LTS

This article walks through a complete production‑grade view of MySQL 8.4 LTS, explaining how a chain of traffic spikes, connection‑pool exhaustion, long transactions and replication lag can cause an avalanche, and then detailing the five core modules, seven production mechanisms, architectural evolution steps, incident post‑mortems, and concrete configuration and code examples to build a resilient MySQL service.

BackupHigh AvailabilityInnoDB

0 likes · 36 min read

Beyond CRUD: Full‑Scale Production Guide for MySQL 8.4 LTS

Ray's Galactic Tech

Jul 27, 2026 · Databases

How Partitioning Cut a 43‑Second PostgreSQL Query to 0.3 seconds

In a SaaS analytics platform with a 45‑billion‑row, 1.2 TB events table, the author shows how moving to native PostgreSQL range partitioning by event_time, combined with zero‑downtime migration steps, reduced the typical P99 query latency from 43 seconds to about 0.3 seconds while enabling easier data lifecycle management.

MigrationPostgreSQLpartitioning

0 likes · 27 min read

How Partitioning Cut a 43‑Second PostgreSQL Query to 0.3 seconds

Ray's Galactic Tech

Jul 27, 2026 · Artificial Intelligence

From Zero to One: Building an AI Requirement Analysis Engine – Full Technical Walkthrough of the Skills Architecture

This article details how to engineer a production‑grade AI requirement‑analysis engine using a modular Skills framework, covering problem definition, architecture, compilation pipeline, conflict detection, impact analysis, scalability, multi‑tenant governance, and deployment best practices.

AIKnowledge RetrievalLLM

0 likes · 34 min read

From Zero to One: Building an AI Requirement Analysis Engine – Full Technical Walkthrough of the Skills Architecture

Ray's Galactic Tech

Jul 26, 2026 · Artificial Intelligence

Add Reusable Templates to an AI Assistant with AgentScope 2.0.3

AgentScope 2.0.3 introduces a Skills layer that lets teams attach reusable, versioned work templates to AI assistants without writing code, separating business logic from runtime control, enabling fine‑grained governance, high‑concurrency isolation, task‑based execution, and robust observability for production‑grade deployments.

AI AgentsSecuritySkills

0 likes · 36 min read

Add Reusable Templates to an AI Assistant with AgentScope 2.0.3

Ray's Galactic Tech

Jul 23, 2026 · Backend Development

How to Keep Billions of Order States In Order with RocketMQ’s Ordered Messaging

The article explains why order‑status updates can become out‑of‑order in high‑traffic systems, how RocketMQ’s ordered‑message feature guarantees per‑key sequencing while highlighting its trade‑offs, and provides concrete producer and consumer implementations, failure handling, scaling, and deployment guidelines to ensure reliable, idempotent order processing.

IdempotencyMessage QueueOrdered Messaging

0 likes · 27 min read

How to Keep Billions of Order States In Order with RocketMQ’s Ordered Messaging

Ray's Galactic Tech

Jul 23, 2026 · Artificial Intelligence

Stop Embedding Business Logic in Prompts: An Enterprise Guide to Spring AI Alibaba Skills

The article explains why many AI projects fail not because of model performance but due to architectural boundaries, illustrates a real‑world incident caused by an ever‑growing "super Prompt", and shows how Spring AI Alibaba Skills can split responsibilities, enforce governance, and make AI services production‑ready.

Alibaba SkillsEnterprise AISpring AI

0 likes · 26 min read

Stop Embedding Business Logic in Prompts: An Enterprise Guide to Spring AI Alibaba Skills