How to Install Hadoop Single node Cluster Using Hadoop 1.x
Install Hadoop-Single node Using Hadoop 1.x, in this Tutorial one can learn how to install Hadoop with Single Node Using Hadoop 1.X. 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 1.x? Or the one who is looking forward to taking the advanced Certification Course from India’s Leading
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Prerequisites for Install Using Single Node Cluster Using Hadoop 1.x
- Hadoop 1.x
- Java V6
- Ubuntu 12.0 or above
Download ubuntu 12.04
Download the Latest Softwares from
Prwatech, Go to the below link and download the image of ubuntu 12.04
Site:
http://prwatech.in/online-softwares/
VMware Player
Open VMware Player and click the open virtual machine and select the path where you have extracted the image of ubuntu. After that select the .vmx file and click ok.
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Now you can see the below screen in VMware Player
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Double click on Ubuntu present in VMware Player. You will get a screen of the below image.
Step by Step Process of Install Hadoop Single node Cluster
Update the repository
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Once the update is complete Use the Below Mentioned Command
Command: sudo apt-get install openjdk-6-jdk
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After java as been installed. To check whether java is installed on your system or Not give the below command:
Command: java –version
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Install openssh-server:
Command: sudo apt-get install openssh-server
Download and extract hadoop
Link: http://prwatech.in/online-softwares/
Command: tar –xvf hadoop-1.2.0.tar.gz
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Get into hadoop-1.2.0 directory
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Edit core-site.xml
Command: sudo gedit core-site.xml
Write under configuration:
<property>
<name>fs.default.name</name>
<value>hdfs://localhost:8020</value>
</property>
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Edit mapred-site.xml
Command: sudo gedit mapred-site.xml
Write under configuration:
<property>
<name>mapred.job.tracker</name>
<value>localhost:8021</value>
</property>
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Edit hdfs-site.xml
Command: sudo gedit hdfs-site.xml
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<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>dfs.permissions</name>
<value>false</value>
</property>
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Add java_home in Hadoop-env.sh file
Command: gedit Hadoop-1.2.0/conf/Hadoop-env.sh
Type:export JAVA_HOME=/usr/lib/JVM/java-6-OpenJDK-i386
Uncomment the below-shown export and add the below the path to your JAVA_HOME:
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Create an ssh key:
Command: ssh-keygen -t rsa
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Moving the key to authorized key:
Command: cat $HOME /.ssh /id_rsa.pub>>$HOME/ .ssh/ authorized_keys
Copy the key to other hosts:
Command: ssh-copy-id -i $HOME/.ssh/id_rsa.pub user@hostname
Get into your bin directory.
Format the name node :
Command: sh hadoop namenode -format
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Start the nodes.
Command: sh start-all.sh
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To check Hadoop started correctly :
Command: jps