Hadoop 2 Installation on Ubuntu – Setup of Hadoop CDH5 6

1. Hadoop 2 Installation Tutorial: Objective

This Hadoop 2 Installation tutorial describes how to install and configure Hadoop cluster on a single-node on Ubuntu OS. Single Node Hadoop cluster is also called as “Hadoop Pseudo-Distributed Mode”. The Hadoop 2 installation is explained here very simply and to the point, so that you can learn Hadoop CDH5 Installation in 10 Min. Once the you install Hadoop 2 is done you can perform Hadoop Distributed File System (HDFS) and Hadoop Map-Reduce operations.

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Learn step by step Apache Hadoop 2 Installation on Ubuntu OS

Hadoop 2 Installation

2. Hadoop 2 Installation: Video Tutorial

This vedio tutorial covers Apache Hadoop 2 installation or Cloudera CDH5 installation on Ubuntu. This will help you to learn Hadoop CDH5 installation in an easy manner.

3. Install Hadoop 2 on Ubuntu

Follow the steps given below to install and configure Hadoop 2 cluster on ubuntu os-

3.1. Recommended Platform

  • OS – Linux is supported as a development and production platform. You can use Ubuntu 14.04 or later (you can also use other Linux flavors like CentOS, Redhat, etc.)
  • Hadoop – Cloudera Distribution for Apache Hadoop CDH5.x (you can use Apache Hadoop 2.x)

I. Setup Platform

If you are using Windows/Mac OS you can create a virtual machine and install Ubuntu using VMWare Player, alternatively, you can create a virtual machine and install Ubuntu using Oracle Virtual Box.

3.2. Prerequisites

I. Install Java 8 (Recommended Oracle Java)

a. Install Python Software Properties

sudo apt-get install python-software-properties

b. Add Repository

sudo add-apt-repository ppa:webupd8team/java

c. Update the source list

sudo apt-get update

d. Install Java

sudo apt-get install oracle-java8-installer

II. Configure SSH

a. Install Open SSH Server-Client

sudo apt-get install openssh-server openssh-client

b. Generate Key Pairs

ssh-keygen -t rsa -P ""

c. Configure password-less SSH

cat $HOME/.ssh/id_rsa.pub >> $HOME/.ssh/authorized_keys

d. Check by SSH to localhost

ssh localhost

3.2. Install Hadoop

I. Download Hadoop 2


II. Untar Tar ball

tar xzf hadoop-2.5.0-cdh5.3.2.tar.gz

Note: All the required jars, scripts, configuration files, etc. are available in HADOOP_HOME directory (hadoop-2.5.0-cdh5.3.2).

III. Hadoop 2 Setup Configuration

a. Edit .bashrc

Now, edit .bashrc file located in user’s home directory and add following parameters:

export HADOOP_PREFIX="/home/hdadmin/hadoop-2.5.0-cdh5.3.2"

Note: After above step restarts the terminal so that all the environment variables will come into effect.

b. Edit hadoop-env.sh

Now, edit configuration file hadoop-env.sh (located in HADOOP_HOME/etc/hadoop) and set JAVA_HOME:

export JAVA_HOME=<path-to-the-root-of-your-Java-installation> (eg: /usr/lib/jvm/java-8-oracle/)

c. Edit core-site.xml

Now, edit configuration file core-site.xml (located in HADOOP_HOME/etc/hadoop) and add following entries:


Note: /home/hdadmin/hdata is a sample location; please specify a location where you have Read Write privileges

d. Edit hdfs-site.xml

Now, edit configuration file hdfs-site.xml (located in HADOOP_HOME/etc/hadoop) and add following entries:


e. Edit mapred-site.xml

Now, edit configuration file mapred-site.xml (located in HADOOP_HOME/etc/hadoop) and add following entries:


f. Edit yarn-site.xml

Now, edit configuration file mapred-site.xml (located in HADOOP_HOME/etc/hadoop) and add following entries:


3.4. Start the Cluster

I. Format the name node

bin/hdfs namenode -format

NOTE: This activity should be done once when you install Hadoop, else It will delete all your data from HDFS.

II. Start HDFS Services


III. Start YARN Services


Follow this link to learn What is YARN?

IV. Check whether services have been started


3.5. Run Map-Reduce Jobs

I. Run word count example

 bin/hdfs dfs -mkdir /inputwords
bin/hdfs dfs -put <data-file> /inputwords
bin/yarn jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.5.0-cdh5.3.2.jar wordcount /inputwords /outputwords
bin/hdfs dfs -cat /outputwords/*

Follow HDFS command Guide to Play with HDFS Commands and perform various operations,

3.6. Stop The Cluster

I. Stop HDFS Services


II. Stop YARN Services


I hope now you are clear with how you do hadoop 2 installaion.

See Also-

As you install Hadoop 2, you can play with HDFS. For any query about Hadoop 2 Installation feel free to share with us. we will be happy to solve your queries.

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