This chapter of the book is dedicated to making you understand the internals of Storm and how it works using practical examples. The intent is to get you accustomed to writing you own spouts, go through reliable and non-reliable topologies, and acquaint you with various groupings provided by the Storm.
The topics that will be covered in the chapter are as follows:
Storm spouts and custom spouts
Anchoring and acking
Different stream groupings
By the end of this chapter, you should be able to understand the various groupings and the concept of reliability by using of anchoring, and you will be able to create your own spouts.