BestHub
Sign in
Yumin Fish Harvest
Author

Yumin Fish Harvest

A deep‑sea salvage fisherman sharing architecture insights, practical tips, and lessons learned.

27
Articles
0
Likes
147
Views
0
Comments
Recent Articles

Latest from Yumin Fish Harvest

27 recent articles
Yumin Fish Harvest
Yumin Fish Harvest
Jul 10, 2026 · Backend Development

Why Traditional Service Layers Fail and How DDD Restores Order

The article shows how a typical three‑layer OrderService accumulates scattered business rules, mixes technical details with domain logic, lacks clear boundaries, and diverges from business language, then explains how Domain‑Driven Design reorganizes code around aggregates and bounded contexts to solve these problems while outlining when DDD is unnecessary.

DDDJavaService Layer
0 likes · 11 min read
Why Traditional Service Layers Fail and How DDD Restores Order
Yumin Fish Harvest
Yumin Fish Harvest
Jul 9, 2026 · Databases

Redis Pipeline, Transactions, Lua, Distributed Locks, Streams & Data Types

This article provides an in‑depth guide to Redis’s advanced capabilities, covering how to use pipeline for batch commands, transactions for ordered execution, Lua scripts for atomic logic, distributed locks with proper token handling, reliable messaging with streams, and specialized data structures such as BitMap, HyperLogLog, Bloom Filter and GEO for efficient large‑scale scenarios.

Bloom FilterDistributed LockGEO
0 likes · 65 min read
Redis Pipeline, Transactions, Lua, Distributed Locks, Streams & Data Types
Yumin Fish Harvest
Yumin Fish Harvest
Jul 7, 2026 · Databases

Redis High‑Availability Deep Dive: Master‑Slave Replication, Sentinel, and Split‑Brain Protection

This article explains why a single‑node Redis deployment is a single‑point‑of‑failure and walks through building a highly available Redis cluster using master‑slave replication, Sentinel monitoring and automatic failover, split‑brain prevention, production deployment guidelines, common pitfalls, and client‑side connection strategies.

DatabaseRedisReplication
0 likes · 36 min read
Redis High‑Availability Deep Dive: Master‑Slave Replication, Sentinel, and Split‑Brain Protection
Yumin Fish Harvest
Yumin Fish Harvest
Jul 7, 2026 · Databases

Understanding Redis Persistence: RDB, AOF, Hybrid Persistence and Redis 7 Multi‑Part AOF

A power outage once erased all cached sessions, counters and leaderboards in Redis, exposing the inherent risk of in‑memory data loss and prompting a deep dive into Redis persistence mechanisms—RDB snapshots, AOF command logging, their trade‑offs, hybrid persistence, and the new Redis 7 Multi‑Part AOF design—so you can choose the right strategy for your workload.

AOFPersistenceRDB
0 likes · 37 min read
Understanding Redis Persistence: RDB, AOF, Hybrid Persistence and Redis 7 Multi‑Part AOF
Yumin Fish Harvest
Yumin Fish Harvest
Jul 7, 2026 · Databases

Redis Performance Secrets: How Data Types and Internal Encodings Boost Speed

This article explains why Redis can store one million items with ten‑fold memory savings by examining each of the five core data types, their underlying encodings such as SDS, listpack, quicklist, hashtable and skiplist, and shows how automatic encoding switches affect memory usage, performance, and common pitfalls.

Data StructuresPerformanceRedis
0 likes · 42 min read
Redis Performance Secrets: How Data Types and Internal Encodings Boost Speed
Yumin Fish Harvest
Yumin Fish Harvest
Jul 7, 2026 · Databases

Step-by-Step Redis Setup from Scratch: Docker, Docker Compose, Master‑Slave, Sentinel, and Cluster

This tutorial walks a complete beginner through launching a Redis server with Docker, managing it with Docker Compose, adding master‑slave replication, configuring Sentinel for automatic failover, building a 3‑master‑3‑replica Redis Cluster, and provides production‑grade configuration templates and an online‑deployment checklist.

ClusterDockerRedis
0 likes · 40 min read
Step-by-Step Redis Setup from Scratch: Docker, Docker Compose, Master‑Slave, Sentinel, and Cluster