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Ray's Galactic Tech
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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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Recent Articles

Latest from Ray's Galactic Tech

100 recent articles max
Ray's Galactic Tech
Ray's Galactic Tech
Apr 21, 2026 · Artificial Intelligence

From Demo to Production: Building a Scalable AI Agent Web App with LangChain4j

Learn how to transform a simple LangChain4j demo into a production‑ready AI agent web application by designing a robust architecture, implementing multi‑agent orchestration, RAG, tool integration, session management, observability, security, and scalable deployment with Spring Boot, PostgreSQL, Redis, Kafka, Docker and Kubernetes.

AILangchain4jRAG
0 likes · 43 min read
From Demo to Production: Building a Scalable AI Agent Web App with LangChain4j
Ray's Galactic Tech
Ray's Galactic Tech
Apr 19, 2026 · Operations

How to Make Real‑Time Speech Translation Reliable: Observability & Load‑Testing Secrets

This article dissects the challenges of building a production‑grade real‑time speech translation pipeline, explains why low latency, high accuracy, and resource contention are opposing forces, and then walks through a four‑layer architecture, metric design, tracing, structured logging, capacity planning, and a multi‑stage load‑testing methodology with concrete code examples and real‑world failure patterns.

Load Testingmicroservicesobservability
0 likes · 39 min read
How to Make Real‑Time Speech Translation Reliable: Observability & Load‑Testing Secrets
Ray's Galactic Tech
Ray's Galactic Tech
Apr 19, 2026 · Cloud Native

Building a Production‑Ready Cloud‑Native Kubernetes Platform: From Zero to SRE Success

This article presents a step‑by‑step guide to designing and implementing a production‑grade Kubernetes platform with GitOps, observability, capacity governance, fault‑injection, and SRE practices, showing how to achieve unified delivery, reliability, and low‑cost operation for high‑concurrency business services.

GitOpsInfrastructureKubernetes
0 likes · 37 min read
Building a Production‑Ready Cloud‑Native Kubernetes Platform: From Zero to SRE Success
Ray's Galactic Tech
Ray's Galactic Tech
Apr 17, 2026 · Backend Development

Build a Million-Connection Audio Gateway with Java WebFlux – Engineering Practices

This article explains how to design and implement a production‑grade, million‑scale long‑connection audio gateway using Java WebFlux, covering architecture decomposition, capacity planning, back‑pressure handling, routing, Kubernetes deployment, monitoring, and real‑world pitfalls for reliable real‑time voice services.

AudioGatewayDistributedSystemsJava
0 likes · 39 min read
Build a Million-Connection Audio Gateway with Java WebFlux – Engineering Practices
Ray's Galactic Tech
Ray's Galactic Tech
Apr 16, 2026 · Artificial Intelligence

How to Turn FunASR into a Production‑Ready Real‑Time Speech Platform: From Single‑Node Demo to Million‑Scale Architecture

This article explains how to evolve FunASR from a simple demo into a production‑grade, low‑latency, high‑concurrency streaming speech‑recognition system by addressing model inference, session state, scaling layers, Kubernetes deployment, monitoring, and common pitfalls for real‑world use cases such as call‑center quality inspection.

FunASRProduction ArchitectureReal-time Speech Recognition
0 likes · 38 min read
How to Turn FunASR into a Production‑Ready Real‑Time Speech Platform: From Single‑Node Demo to Million‑Scale Architecture
Ray's Galactic Tech
Ray's Galactic Tech
Apr 15, 2026 · Cloud Native

From Solo Demo to Cloud‑Native: Building a High‑Availability Real‑Time Translation Bot with AgentScope Java

This article walks through the complete engineering practice of turning a single‑machine demo into a cloud‑native, highly available real‑time translation robot using AgentScope Java, covering business requirements, architecture evolution, core AgentScope concepts, code examples, deployment, observability, performance tuning, and common pitfalls.

Agent architecturecloud-nativemicroservices
0 likes · 29 min read
From Solo Demo to Cloud‑Native: Building a High‑Availability Real‑Time Translation Bot with AgentScope Java
Ray's Galactic Tech
Ray's Galactic Tech
Apr 14, 2026 · Backend Development

How Go Microservices Pay a Hidden Performance Tax—and How to Eliminate It

This article examines the often‑overlooked performance “tax” in Go microservices, detailing how misuse of goroutines, channels, interfaces, object allocation, and fan‑out patterns inflates CPU, memory, and tail‑latency costs, and provides concrete engineering strategies—such as request‑level concurrency limits, bulkheads, and efficient logging—to achieve production‑grade scalability.

GoKubernetesPerformance
0 likes · 40 min read
How Go Microservices Pay a Hidden Performance Tax—and How to Eliminate It