Hadoop in Action

Chapter 2. Starting Hadoop

This chapter covers

• The architectural components of Hadoop
• Setting up Hadoop and its three operating modes: standalone, pseudo-distributed, and fully distributed
• Web-based tools to monitor your Hadoop setup

This chapter will serve as a roadmap to guide you through setting up Hadoop. If you work in an environment where someone else sets up the Hadoop cluster for you, you may want to skim through this chapter. You’ll want to understand enough to set up your personal development machine, but you can skip through the details of configuring the communication and coordination of various nodes.

After discussing the physical components of Hadoop in section 2.1, we’ll progress to setting up your cluster in sections 2.2 ...