The Hadoop-YARN single node installation

In a single node installation, all the Hadoop-YARN daemons (NameNode, ResourceManager, DataNode, and NodeManager) run on a single node as separate Java processes. You will need only one Linux machine with a minimum of 2 GB RAM and 15 GB free disk space.

Prerequisites

Before starting with the installation steps, make sure that you prepare the node as specified in the above topic.

  • The hostname used in the single node installation is localhost with 127.0.0.1 as the IP address. It is known as the loopback address for a machine. You need to make sure that the /etc/hosts file contains the resolution for the loopback address. The loopback entry will look like this:
    127.0.0.1    localhost
  • The passwordless SSH is configured ...

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