Book Image

Hadoop Essentials

By : Shiva Achari
Book Image

Hadoop Essentials

By: Shiva Achari

Overview of this book

This book jumps into the world of Hadoop and its tools, to help you learn how to use them effectively to optimize and improve the way you handle Big Data. Starting with the fundamentals Hadoop YARN, MapReduce, HDFS, and other vital elements in the Hadoop ecosystem, you will soon learn many exciting topics such as MapReduce patterns, data management, and real-time data analysis using Hadoop. You will also explore a number of the leading data processing tools including Hive and Pig, and learn how to use Sqoop and Flume, two of the most powerful technologies used for data ingestion. With further guidance on data streaming and real-time analytics with Storm and Spark, Hadoop Essentials is a reliable and relevant resource for anyone who understands the difficulties - and opportunities - presented by Big Data today. With this guide, you'll develop your confidence with Hadoop, and be able to use the knowledge and skills you learn to successfully harness its unparalleled capabilities.
Table of Contents (15 chapters)
Hadoop Essentials
About the Author
About the Reviewers
Pillars of Hadoop – HDFS, MapReduce, and YARN

Need of a data processing tool on Hadoop

MapReduce is the key to perform processing on Big Data, but it is complex to understand, design, code, and optimize. MapReduce has a high learning curve, which requires good programming skills to master. Usually Big Data users come from different backgrounds such as Programming, Database administrators, scripting, Analyst, Data science, Data Managers, and so on, and not all users can adapt to the programming model of MapReduce. Hence we have different abstractions for the data access components for Hadoop.

The data access components are very useful for developers as they may not need to learn MapReduce programming in detail and can still utilize the MapReduce framework in an interface in which they can be much more comfortable and can help in faster development and better manageability of the code. Abstractions can help ad hoc processing on data quickly and concentrate on the business logic.

The two widely used data access components in the Hadoop ecosystem...