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Hadoop for Finance Essentials by Rajiv Tiwari

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Chapter 1. Big Data Overview

Everything an organization or an individual does has a digital footprint that can be used or analyzed. Quite simply, big data refers to the usage of an ever increasing volume of data.

In this chapter, we will provide an overview of big data and Hadoop with the help of following topics:

  • What is big data?
  • Big data technology evolution
  • Big data landscape
  • Careers in big data
  • Hadoop architecture
  • The Hadoop jungle explained
  • Hadoop distributions

What is big data?

There are many definitions of big data provided by different consultancies and IT providers. Here is a shortlist of two of the best definitions.

The first and the coolest definition is "data that is so big it cannot be processed using traditional data processing tools and applications". ...

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