Configuring Hadoop Cluster using Ansible Playbook

3 min readSep 26, 2021

We use Ansible to automate cloud provisioning, configuration management, deployment and other IT operations by simply writing playbooks. It is an open-source tool that increases our productivity at a large scale, saving us a lot of time and hassle when we need to perform configuration management on multiple nodes.

Hadoop

Apache Hadoop is an open-source, Java-based, software framework and parallel data processing engine. It enables big data analytics processing tasks to be broken down into smaller tasks that can be performed in parallel by using an algorithm (like the MapReduce algorithm) and distributing them across a Hadoop cluster.

A Hadoop cluster is a collection of computers, known as nodes, that are networked together to perform these kinds of parallel computations on big data sets. Unlike other computer clusters, Hadoop clusters are designed specifically to store and analyze mass amounts of structured and unstructured data in a distributed computing environment.

OBJECTIVES

To create an ansible role to configure the NameNode of the Hadoop cluster.
To create an ansible role to configure the DataNode of the Hadoop cluster.
To create an ansible-playbook to configure Hadoop Cluster using the NameNode and DataNode ansible roles.

Let’s start the practical….

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As you can see that, we have successfully launched and configured both NameNode and DataNode. They both are ready to use as a fully functioning cluster.

Thank you for reading.

Happy Learning!