Database Migration [SAFE]

Here is the story of how that migration happens, from disaster to triumph. Chapter 1: The Disastrous "Big Bang" (What Not to Do)

Imagine a startup, "FastFlow," that started with a simple, comfortable home: a single MySQL database on a modest server. As years passed, the family (users) grew, and they bought more furniture (data). Now, the house is bursting at the seams, the floor is sagging, and the plumbing (query performance) is failing. It’s time to move to a massive new mansion (cloud-native PostgreSQL on AWS). database migration

Early attempts to move often look like a "Big Bang" approach. You turn off the application, copy the database, and turn it on in the new location. Here is the story of how that migration

Despite the best planning, migrations are "10x more difficult than people think". Now, the house is bursting at the seams,

A dedicated "tiger team" tests every byte to ensure data integrity. Chapter 3: The Darkest Hour (When Things Go Wrong)