In the previous chapter, we have brought the OpenStack environment up and running. The Sahara project has been included and is ready to be used. In this chapter, we will start using Sahara to create a Hadoop cluster. Of course, running an Apache Hadoop cluster on top of OpenStack might require few planning considerations. This can include what type of instances will be assigned to the Hadoop cluster, image types, network setup, and storage backend. The following points will be highlighted:
Understanding node types in Sahara for a Hadoop cluster
Preparing an image for Hadoop nodes
Configuring a network for a Hadoop cluster
Creating and managing a Hadoop cluster using CLI
Creating and managing a Hadoop cluster using Horizon