Book Image

Hadoop 2.x Administration Cookbook

By : Aman Singh
Book Image

Hadoop 2.x Administration Cookbook

By: Aman Singh

Overview of this book

Hadoop enables the distributed storage and processing of large datasets across clusters of computers. Learning how to administer Hadoop is crucial to exploit its unique features. With this book, you will be able to overcome common problems encountered in Hadoop administration. The book begins with laying the foundation by showing you the steps needed to set up a Hadoop cluster and its various nodes. You will get a better understanding of how to maintain Hadoop cluster, especially on the HDFS layer and using YARN and MapReduce. Further on, you will explore durability and high availability of a Hadoop cluster. You’ll get a better understanding of the schedulers in Hadoop and how to configure and use them for your tasks. You will also get hands-on experience with the backup and recovery options and the performance tuning aspects of Hadoop. Finally, you will get a better understanding of troubleshooting, diagnostics, and best practices in Hadoop administration. By the end of this book, you will have a proper understanding of working with Hadoop clusters and will also be able to secure, encrypt it, and configure auditing for your Hadoop clusters.
Table of Contents (20 chapters)
Hadoop 2.x Administration Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
Index

Setting up multi-node HBase cluster


In this recipe, we will configure an HBase fully distributed cluster with ZooKeeper quorum formed by three nodes. This is the recommended configuration for the production environment.

Getting ready

The user is expected to complete the previous recipe and must have completed the recipes for setting up Hive with ZooKeeper. In this recipe, we will be using the already configured ZooKeeper ensemble.

How to do it...

  1. Connect to the master1.cyrus.com master node in the cluster and change to the user hadoop.

  2. Stop any daemons running from the previous HBase recipe.

  3. Make sure the HBase package is downloaded, extracted, and the environment variables are set up as discussed in the previous recipe.

  4. To confirm the setup, execute the commands as shown in the following screenshot:

  5. Edit the hbase-site.xml file, as shown here:

    <property>
        <name>hbase.master</name>
        <value>master1.cyrus.com:60000</value>
    </property>
    
    <property>
       ...