Database Reference
In-Depth Information
Chapter 2. Getting Started with Your First
Topology
This chapter is dedicated to guiding you through the steps to set up the environment for the
execution of a Storm topology. The intent is to prepare the user sandbox and get you
steered toward executing some of the sample code and understanding the working of vari-
ous components. All the concepts will be accompanied by code snippets and a "try it your-
self" section so that you are equipped to understand the components in a practical manner
and are ready to explore and harness the power of this wonderful technology.
The topics that will be covered in this chapter are as follows:
• Storm topology and components
• Executing the sample Storm topology
• Executing the topology in distributed mode
By the end of the chapter, you will be able to understand the components and data flow in a
topology, understand the simple word count topology, and execute it in the local and dis-
tributed modes. You will also be able to tweak the starter project topologies to add your
own flavor to them.
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