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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 9, 2026 · Cloud Native

Goodbye Hand‑Written YAML Hell: Deploy Microservices with Helm

The article explains how manual Kubernetes YAML quickly becomes unmanageable in microservice environments and demonstrates how Helm provides templating, parameterization, versioning, dependency management, and lifecycle hooks to create a standardized, automated, production‑grade deployment pipeline that can handle billions of requests across multiple services.

CI/CDGitOpsHelm

0 likes · 35 min read

Goodbye Hand‑Written YAML Hell: Deploy Microservices with Helm

Ray's Galactic Tech

Aug 7, 2026 · Databases

OLAP Engine Selection for Billion‑Row Analytics: Doris, ClickHouse, StarRocks

This guide compares Doris, ClickHouse, and StarRocks for billion‑row real‑time analytics, outlining their strengths and weaknesses across write throughput, update handling, join performance, concurrency, cost, and operational complexity, and provides concrete modeling, ingestion, query governance, and fault‑tolerance recommendations to help teams choose the most suitable OLAP platform.

ClickHouseDorisFlink

0 likes · 32 min read

OLAP Engine Selection for Billion‑Row Analytics: Doris, ClickHouse, StarRocks

Ray's Galactic Tech

Aug 7, 2026 · Operations

Scaling Nginx to Handle 500M Daily Requests: From Reverse Proxy to Traffic Governance Hub

This article walks through an enterprise‑grade Nginx upgrade for a payment platform handling ~500 million daily requests, detailing why simple reverse‑proxying fails, how Nginx can become a traffic‑governance edge with rate limiting, edge caching, gray releases, high‑availability, and observability, and provides production‑ready configurations and step‑by‑step analysis.

NginxObservabilityedge caching

0 likes · 42 min read

Scaling Nginx to Handle 500M Daily Requests: From Reverse Proxy to Traffic Governance Hub

Ray's Galactic Tech

Aug 6, 2026 · Databases

Taming Message Storms: Redis 7.x Engineering Practices for Enterprise Live‑Streaming Platforms

This article dissects why a simple Redis upgrade is insufficient for large‑scale live streaming, then walks through how Redis 7’s Sharded Pub/Sub, Function, and ACL v2 features together eliminate broadcast storms, streamline script governance, and enforce fine‑grained multi‑tenant control, backed by concrete architecture diagrams, production‑grade Java code, capacity planning, monitoring, rollout procedures, and real‑world benchmark results.

ACLLive StreamingRedis

0 likes · 41 min read

Taming Message Storms: Redis 7.x Engineering Practices for Enterprise Live‑Streaming Platforms

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.

GoObservabilityWorker 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.

Cloud NativeDAGJava

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-GCMBlind IndexingField-Level Encryption

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.

BackupInnoDBMySQL

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.

PostgreSQLZero Downtimemigration

0 likes · 27 min read

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