Database Sharding & Replication
Understand advanced database scaling techniques such as sharding and replication for high-load systems.
Scaling Database Performance
As applications grow, a single database can become a bottleneck. High traffic, complex queries, or large datasets can slow things down.
To handle increasing load and ensure responsiveness, databases need to scale. This lesson explores two key techniques: Replication and Sharding.
What is Database Replication?
Database replication is the process of creating and maintaining multiple copies of a database.
These copies, often on different servers, serve two main purposes:
- Improved Read Performance: Distribute read requests across multiple copies.
- High Availability: If one server fails, another copy can take over.