Now that we have seen both the storage and processing parts of a Hadoop cluster, let's get started with the installation of Hadoop. We will use Hadoop 2.2.0 in this chapter.
Hadoop 2.2.0 is not compatible with Hadoop 1.X versions.
We will be setting up a cluster on a single node. Before starting, please make sure that you have the following software installed on your system:
If you don't have ssh-keygen, install it with the following command:
yum install openssh-clients
Next, we will need to set up password-less SSH on this machine as it is required for Hadoop. ...