This chapter is an overview of big data and Hive, especially in the Hadoop ecosystem. It briefly introduces the evolution of big data so that readers know where they are in the journey of big data and find their preferred areas in future learning. This chapter also covers how Hive has become one of the leading tools in big data warehousing and why Hive is still competitive.
In this chapter, we will cover the following topics:
A short history from database and data warehouse to big data
Introducing big data
Relational and NoSQL databases versus Hadoop
Batch, real-time, and stream processing
Hadoop ecosystem overview
Hive overview