Database Archives - Page 13 of 13 - ITFROMZERO

MySQL Master-Slave Replication Setup: From Real Incidents to Solutions

By IT From Zero March 1, 2026

A complete guide to MySQL Master-Slave Replication from start to finish, solving database overload and single point of failure. Covers each step from configuring Binary Log and creating the replication user to connecting and verifying the Slave.

Database

Optimizing PostgreSQL Performance with PgBouncer: Connection Pooling in Production

By IT From Zero February 28, 2026

A guide to installing and configuring PgBouncer to address connection overhead in PostgreSQL. Real-world experience after 6 months in production: server connections reduced from 180 to 25, API response time improved from 800ms to under 300ms.

Database

Getting Started with Redis: Installation and Basic Usage — From 2 AM Production Crisis to Proficiency

By IT From Zero February 28, 2026

When a Django server starts timing out under heavy traffic, the culprit is often a database overwhelmed by repeated identical queries. This guide covers installing Redis on Linux, the essential commands you need to know, and how to integrate a cache layer into Python to immediately reduce database load.