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Scalability

The ability of a system to handle growing amounts of work.

General Development

scalability

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What is scalability?

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Scalability is a system’s ability to handle increasing workloads efficiently. A scalable system can grow without performance issues, whether by adding users, data, or traffic

2

What is Horizontal Scaling?

Horizontal Scaling (Scaling Out) means adding more machines (servers) to distribute the load. This is how companies like Amazon handle massive traffic by adding thousands of extra servers at thier peak time like great Indian festival

3

What is Vertical Scaling?

Vertical Scaling (Scaling Up) means increasing the power (CPU, RAM) of a single machine instead of adding new ones. It's like upgrading a laptop instead of buying more laptops.

4

Which is better: Horizontal or Vertical Scaling?

Horizontal Scaling is better for handling millions of users, as it prevents a single point of failure. Vertical Scaling is easier but has hardware limits.