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

Using Hadoop Vaidya to identify performance problems


Hadoop Vaidya is an open source, rule-based performance diagnostic framework for Apache Hadoop. Each rule can identify a specific performance problem. For example, Hadoop cluster administrators can use Vaidya to identify slow progressing jobs that are wasting cluster resources. Hadoop clients can use Vaidya to identify configuration mistakes for their submitted jobs.

Hadoop Vaidya is extensible; users can analyze Hadoop job with their own rules. In this recipe, we will outline steps to configure Hadoop Vaidya for Hadoop cluster performance diagnosis.

Getting ready

Before getting started, we assume that the Hadoop cluster has been properly configured and all the daemons are running without any issues.

Log in from the Hadoop cluster administrator machine to the master node machine using the following command:

ssh hduser@master

How to do it...

Perform the following steps to use Hadoop Vaidya:

  1. Locate the directory for the job configuration file...