Book Image

Mastering Hadoop 3

By : Chanchal Singh, Manish Kumar
Book Image

Mastering Hadoop 3

By: Chanchal Singh, Manish Kumar

Overview of this book

Apache Hadoop is one of the most popular big data solutions for distributed storage and for processing large chunks of data. With Hadoop 3, Apache promises to provide a high-performance, more fault-tolerant, and highly efficient big data processing platform, with a focus on improved scalability and increased efficiency. With this guide, you’ll understand advanced concepts of the Hadoop ecosystem tool. You’ll learn how Hadoop works internally, study advanced concepts of different ecosystem tools, discover solutions to real-world use cases, and understand how to secure your cluster. It will then walk you through HDFS, YARN, MapReduce, and Hadoop 3 concepts. You’ll be able to address common challenges like using Kafka efficiently, designing low latency, reliable message delivery Kafka systems, and handling high data volumes. As you advance, you’ll discover how to address major challenges when building an enterprise-grade messaging system, and how to use different stream processing systems along with Kafka to fulfil your enterprise goals. By the end of this book, you’ll have a complete understanding of how components in the Hadoop ecosystem are effectively integrated to implement a fast and reliable data pipeline, and you’ll be equipped to tackle a range of real-world problems in data pipelines.
Table of Contents (23 chapters)
Title Page
Dedication
About Packt
Foreword
Contributors
Preface
Index

Chapter 2. Deep Dive into the Hadoop Distributed File System

Today, data is being used to generate new opportunities, and companies can generate more business using data analytics. A single machine is not enough to handle growing volumes of data. Hence, it is necessary to distribute data between multiple machines. The Distributed File System consists of a number of machines, with data distributed between them. Hadoop offers a distributed storage File System, which is known as the Hadoop Distributed File System (HDFS). HDFS is capable of handling high volumes of data and is easily scalable. It also handles machine failure without any data loss. 

In this chapter, we will look at the following topics:

  • The details of the HDFS architecture
  • Read/write operations
  • The internals of HDFS components
  • HDFS commands and understanding their internal working