Chapter 3. The Basics of Multimachine Clusters
This chapter explains how to set up a multimachine cluster. You'll learn about the makeup of a cluster, the tools for managing clusters, and how to configure a cluster. Here, we'll walk-through a simple cluster configuration, using the minimum HDFS setup necessary to bring up the cluster. Chapter 4 will go into the details for a high-usage HDFS.
The Makeup of a Cluster
A typical Hadoop Core cluster is made up of machines running a set of cooperating server processes. The machines in the cluster are not required to be homogeneous, and commonly they are not. The cluster machines may even have different CPU architectures and operating systems. But if the machines have similar processing power, memory, ...