backend – ITFROMZERO – Share tobe shared!

Development tutorial - IT technology blog

Real-time Data Streaming with SSE in Node.js: Don’t Use WebSocket for Everything

By admin May 3, 2026

Don't use WebSocket for everything! Discover Server-Sent Events (SSE) - a lightweight, easy-to-implement real-time streaming solution in Node.js for one-way data flow.

Development

Practical Redis Caching: From DB Crashes to Handling Millions of Requests

By admin May 3, 2026

Key takeaways from 6 months of operating Redis in production. Detailed guide on reducing Database load from 95% to 15% using Cache-Aside, Write-Through, and Jitter TTL techniques.

Database

Deploying Redis Cluster: A Scalable Cache Solution for High-Load Systems

By admin May 1, 2026

Learn how to set up a Redis Cluster to break the limits of a single server. Detailed guide on Sharding, Hash Slots, and automatic Failover for high availability.

MySQL

MySQL: Don’t Let utf8 Deceive You – The Ultimate Guide to Fixing Emojis and Font Issues with utf8mb4

By admin April 24, 2026

Don't let MySQL's 'utf8' mislead you. A detailed guide on configuring utf8mb4 to support Emojis and Vietnamese, plus how to handle the 767-byte index error based on real-world experience.

Development

Building a Data Streaming System with Apache Kafka and Node.js: From Zero to Production

By admin April 23, 2026

Is your system slowing down when handling massive data? Discover how Apache Kafka and Node.js solve data streaming challenges with a guide from Docker setup to real-world code.

Database

Mastering Logical Replication in PostgreSQL: Flexible and Practical Data Sync

By admin April 23, 2026

PostgreSQL Logical Replication enables selective data sync and minimizes downtime. This guide covers configuration steps and fixes for Primary Key and Sequence issues based on real-world experience.

Python

Celery & Redis: Background Task Solutions to Speed Up Python Applications

By admin April 22, 2026

Significantly speed up Python applications by offloading heavy tasks to Celery and Redis. A detailed guide from setup to professional worker management.

Development

Building High-Speed Microservices with Go and gRPC: From Theory to Practice

By admin April 22, 2026

Learn to build high-speed microservices with Go and gRPC. A detailed guide on reducing latency by 40% and optimizing inter-service communication using Protocol Buffers.

Database

Mastering MongoDB Aggregation Framework: Building Real-World Data Pipelines

By admin April 20, 2026

Learn to build optimized MongoDB Aggregation Pipelines through real-world examples. Explore $match, $group, $lookup, and how to handle the 100MB RAM limit for Big Data.

Database

PostgreSQL Indexing: Don’t Just Use B-Tree for Millions of Rows

By admin April 19, 2026

Stop overusing B-Tree for everything. This article shares practical experience on using GIN for JSONB, BRIN for Big Data, and how to create indexes without locking your production database.