This chapter introduces you to security in the Hadoop ecosystem. When you are adopting Hadoop in your enterprise, then security becomes very important. You do not want people with unauthorized access to be able to reach the data stored in the HDFS File System. Security not only concerns a single aspect; you have to think about multiple aspects while securing your Hadoop enterprise application. Let's look at these aspects and understand what roles these play in securing Hadoop-based enterprise applications.
In this chapter, we will cover the following topics:
- Different aspects of Hadoop security pillars
- Security systems
- Kerberos authentication
- User authorization
