How to Install & Getting Started With Apache Hadoop Database for Linux Ubuntu 13.04 Raring Desktop

Hi! The Tutorial shows you Step-by-Step How to Install and Getting-Started with Apache Hadoop/Map-Reduce vanilla in Pseudo-Distributed mode on Ubuntu Linux 13.04 Raring i386/amd64 Desktop.

The Guide Describe a System-Wide Setup with Root Privileges but you Can Easily Convert the Procedure to a Local One.

The Contents and Details are Expressly Essentials to Give Focus Only to the Essentials Instructions and Commands.

1. Download Latest Apache Hadoop Stable Release:

   Apache Hadoop Binary tar.gz

   Apache Hadoop

2. Double-Click on Archive and Extract Into /tmp Directory

   

3. Open Terminal Window
   (Press “Enter” to Execute Commands)

   Cmd and Search “term”

   

   In case first see: Terminal QuickStart Guide.

4. Relocate Apache Hadoop Directory

   sudo su

   If Got “User is Not in Sudoers file” then see: How to Enable sudo

   mv /tmp/hadoop* /usr/local/

   ln -s /usr/local/hadoop* /usr/local/hadoop

   mkdir /usr/local/hadoop/tmp

   sudo chown -R root:root /usr/local/hadoop*

5. How to Install Oracle Official Java JDK on Ubuntu

   Install Oracle JDK for Ubuntu

   Installing Java Oracle JDK on Ubuntu Linux Desktops

6. Set JAVA_HOME in Hadoop Env File

   nano /usr/local/hadoop/conf/hadoop-env.sh

   Inserts:

   /nexport JAVA_HOME=/usr/lib/jvm/<oracleJdkVersion>

   Ctrl+x to Save & Exit :)

7. Configuration for Pseudo-Distributed mode

   nano /usr/local/hadoop/conf/core-site.xml

   The Content Should Look Like:

   <?xml version=”1.0″?>
   <?xml-stylesheet type=”text/xsl” href=”configuration.xsl”?>
   <configuration>
   <property>
   <name>hadoop.tmp.dir</name>
   <value>/usr/local/hadoop/tmp</value>
   </property>
   <property>
   <name>fs.default.name</name>
   <value>hdfs://localhost:8020</value>
   </property>
   </configuration>

   Next:

   nano /usr/local/hadoop/conf/hdfs-site.xml

   The Content Should Look Like:

   <?xml version=”1.0″?>
   <?xml-stylesheet type=”text/xsl” href=”configuration.xsl”?>
   <configuration>
   <property>
   <name>dfs.replication</name>
   <value>1</value>
   </property>
   <property>
   <!– specify this so that running ‘hdfs namenode -format’
   formats the right dir –>
   <name>dfs.name.dir</name>
   <value>/usr/local/hadoop/cache/hadoop/dfs/name</value>
   </property>
   </configuration>

   Latest:

   nano /usr/local/hadoop/conf/mapred-site.xml

   The Content Should Look Like:

   <?xml version=”1.0″?>
   <?xml-stylesheet type=”text/xsl” href=”configuration.xsl”?>
   <configuration>
   <property>
   <name>mapred.job.tracker</name>
   <value>localhost:8021</value>
   </property>
   </configuration>

8. SetUp Path & Environment

   su <myuser>

   cd  

   nano .bashrc

   Inserts:

   HADOOP_HOME=/usr/local/hadoop
   /nexport PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin

   The JAVA_HOME is Set Following Oracle Java JDK6+ Installation Version…

   Then Load New Setup:

   source $HOME/.bashrc

9. SetUp Needed Local SSH Connection

   sudo systemctl start ssh

   Generate SSH Keys to Access:

   ssh-keygen -b 2048 -t rsa

   echo "$(cat ~/.ssh/id_rsa.pub)" > ~/.ssh/authorized_keys

   Testing Connection:

   ssh 127.0.0.1

10. Formatting HDFS

    hdfs namenode -format

    

11. Starting Up Hadoop Database

    start-all.sh

12. Apache Hadoop Database Quick Start Guide

    Hadoop MapReduce Quick Start

    The Linked Guide Contains a Step-by-Step Jump Start Guide for Apache Hadoop Database