HLD Interview Notes: Day 14/30
This is a dev post classified by AGK Intelligence as Databases (a tutorial), kept by the Dev Radar because it carries real work, not commentary.
HLD Interview Notes: Day 14/30 Topic: Database Replication: Leader-Follower Architecture Imagine your application has millions of users accessing the database simultaneously. What happens if every read and write request goes to a single database server? It can become a bottleneck and a single point of failure. How can we distribute read traffic, improve availability, and keep multiple database copies synchronized? That's where Database Replication comes in. 1. What Is Database Replication? Database Replication is the process of maintaining copies of the same database across multiple da
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