Chapter 7.  Learning Caching and Message Queuing

Caching is incredibly useful and can be applied to almost all layers of an application stack. However, it's hard to always get caching working correctly, so, in this chapter, we will cover caching at the web, application, and database levels. We will show you how to use a reverse proxy server to store the results of your rendered web pages and other assets. We'll also cover caching at lower levels, using an in-memory data store to speed up access. You will learn how to ensure that you can always flush (or bust) your cache if you need to force the propagation of updates.

This chapter also covers asynchronous architecture design using message queuing and abstractions that encapsulate various messaging patterns. You will learn how to perform a long running operation (such as video encoding) in the background, while keeping the user informed of its progress.

You will learn how to apply caching and message queuing software design...