Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Learning Hbase

You're reading from   Learning Hbase Learn the fundamentals of HBase administration and development with the help of real-time scenarios

Arrow left icon
Product type Paperback
Published in Nov 2014
Publisher
ISBN-13 9781783985944
Length 326 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
Shashwat Shriparv Shashwat Shriparv
Author Profile Icon Shashwat Shriparv
Shashwat Shriparv
Arrow right icon
View More author details
Toc

Table of Contents (12) Chapters Close

Preface 1. Understanding the HBase Ecosystem FREE CHAPTER 2. Let's Begin with HBase 3. Let's Start Building It 4. Optimizing the HBase/Hadoop Cluster 5. The Storage, Structure Layout, and Data Model of HBase 6. HBase Cluster Maintenance and Troubleshooting 7. Scripting in HBase 8. Coding HBase in Java 9. Advance Coding in Java for HBase 10. HBase Use Cases Index

Hadoop start up steps


Let's get started with Hadoop using the following steps:

  1. Format NameNode.

    Before starting up the Hadoop daemons, we need to format NameNode. This is like formatting a new disk. We know that just as we bring a new disk drive and format it to a file system (FAT, NTFS, ExtFS), we format NameNode. This process creates a logical layer of HDFS on top of the file system.

    Note

    <hadoop directory path> can be added to the system path to call the hadoop command directly. Follow http://www.cyberciti.biz/faq/unix-linux-adding-path/ for various options.

    The following line will format NameNode and make it available to read and write files from HDFS. This command prepares the HDFS file system:

    <hadoop directory path>/bin/hdfsnamenode –format <cluster name>
    
  2. Once NameNode is formatted successfully without any errors, let's start the Hadoop daemons:

    sbin/hadoop-daemon.sh start namenode
    sbin/hadoop-daemons.sh start datanode
    sbin/yarn-daemon.sh start resourcemanager
    sbin/yarn...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime