Install Hadoop Single node Cluster Using Hadoop 2.x

How to Install Hadoop Single node Cluster Using Hadoop 2.x, in this  Tutorial one can learn how to install Hadoop with Single Node Using  Hadoop 2.X. We Prwatech the Pioneers of Hadoop Training Sharing information about Hadoop to Those Tech Enthusiasts who wanted to explore the technology and who wanted to Become the Certified Big Data  Developer. Are you the one who is looking for the best platform which provides information about what is the installation process of Hadoop-Single Node clustering Using Hadoop 2.x? Or the one who is looking forward to taking the advanced Certification Course from India’s Leading Big Data  Training institute? Then you’ve landed on the Right Path.

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Prerequisites:

1.Hadoop 2.7.0
2.Java-8-oracle
3.Ubuntu 12.0 or above

Process of Setting up a Single Node Cluster Using Hadoop 2.x

Update the repository

Once the update is complete go for java installation

Command : 

sudo add-apt-repository ppa:webupd8team/java

sudo apt-get update

sudo apt-get install oracle-java8-installer

♦ After java has been installed. To check whether java is installed on your system or Not give the below command:

Command: java –version

Install openssh-server

Command: sudo apt-get install openssh-server

Download Hadoop 2.7.0.tar.gz

Command: wget  https://archive.apache.org/dist/hadoop/core/hadoop-2.7.0/hadoop-2.7.0.tar.gz

After downloading untar the Hadoop

Command: tar -xvf hadoop-2.7.0.tar.gz

Get into Hadoop directory

Go to Hadoop and configure the fill

Edit core-site.xml

Edit hdfs-site.xml

Edit mapred-site.xml

Edit yarn-site.xml

Edit Hadoop-env.sh

Set JAVA and HADOOP HOME in the .bashrc file

Create an ssh key:

Command: ssh-keygen -t rsa

Moving the key to authorized key

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

Copy the key to other host

Command: ssh-copy-id -i $HOME/.ssh/id_rsa.pub user@hostname

Now format the name node

Start all daemons

Check your daemons

Command: Jps