Book Image

Hadoop Operations and Cluster Management Cookbook

By : Shumin Guo
Book Image

Hadoop Operations and Cluster Management Cookbook

By: Shumin Guo

Overview of this book

<p>We are facing an avalanche of data. The unstructured data we gather can contain many insights that could hold the key to business success or failure. Harnessing the ability to analyze and process this data with Hadoop is one of the most highly sought after skills in today's job market. Hadoop, by combining the computing and storage powers of a large number of commodity machines, solves this problem in an elegant way!</p> <p>Hadoop Operations and Cluster Management Cookbook is a practical and hands-on guide for designing and managing a Hadoop cluster. It will help you understand how Hadoop works and guide you through cluster management tasks.</p> <p>This book explains real-world, big data problems and the features of Hadoop that enables it to handle such problems. It breaks down the mystery of a Hadoop cluster and will guide you through a number of clear, practical recipes that will help you to manage a Hadoop cluster.</p> <p>We will start by installing and configuring a Hadoop cluster, while explaining hardware selection and networking considerations. We will also cover the topic of securing a Hadoop cluster with Kerberos, configuring cluster high availability and monitoring a cluster. And if you want to know how to build a Hadoop cluster on the Amazon EC2 cloud, then this is a book for you.</p>
Table of Contents (15 chapters)
Hadoop Operations and Cluster Management Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Designing the cluster network


The network is the backbone of a Hadoop cluster. Its stability is critical for the performance of the cluster. In this recipe, we will outline a few general rules for designing a Hadoop cluster network.

How to do it...

The network architecture for a small to medium-sized cluster can be as simple as connecting the cluster nodes with one or more switches. Connection redundancy can add reliability to the network.

Tip

Warning!

Computing nodes in a Hadoop cluster should be configured within the same network segment (Local Area Network (LAN)). Advanced features such as VLANs that can cause overhead are not recommended. Connecting nodes with a router is also not recommended.

The network architecture for the Hadoop clusters with hundreds or thousands of nodes is much more complex. In a large cluster, the physical nodes are usually so small, for example, a blade server, that they can be mounted on racks. Each rack has a local switch that interconnects nodes on the same rack...