Scaling web applications
As the number of users grow over time, the application needs to scale up to be able to keep up with the load. There are usually two main ways to scale up applications:
- Vertical scale: This is the simplest scaling. It involves upgrading the server with more resources such as CPU, RAM, HDD, I/O, and more.
- Horizontal scale: This is more complicated, but also better in the long run. It involves distributing the load across multiple servers instead of just one.
Figure 1: Example of vertical versus horizontal scaling
Scaling out vertically – one server
The simplest way to deploy an application is to put everything into a single server, ...
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