In this chapter, you were introduced to Cloudera Manager and learned some of its important features. You also got to know about its architecture and how it works with its agents to collect information from the different nodes in the cluster. We then installed Cloudera Manager and navigated the important screens of the web console so you understand its different options and features. We also configured HDFS HA using Cloudera Manager to demonstrate the ease of using Cloudera Manager for administrative activities.

In the next chapter, we will dive into the security aspects of Apache Hadoop, dealing with authentication and authorization of users and services using Kerberos.