Storage and Analysis at Internet Scale
This book explains how to set up Hadoop to run on a cluster of machines. Running HDFS, MapReduce, and YARN on a single machine is great for learning about these systems, but to do useful work, they need to run on multiple nodes.
There are a few options when it comes to getting a Hadoop cluster, from building your own, to running on rented hardware or using an offering that provides Hadoop as a hosted service in the cloud. The number of hosted options is too large to list here, but even if you choose to build a Hadoop cluster yourself, there are still a number of installation options.
This chapter gives you enough information to set up and operate your own basic cluster, but even if you are using Hadoop cluster management tools or a service in which a lot of the routine setup and maintenance are done for you, these chapters still offer valuable information about how Hadoop works from an operations point of view.