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How to Quick-Start With Hadoop on Ubuntu 15.10 Wily 32-64bit Step-by-Step Easy Guide

October 1, 2015 | By the+gnu+linux+evangelist.

Install Apache Hadoop Ubuntu 15.10 Wily Linux

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 15.10 Wily Werewolf GNU/Linux Desktop.

Hadoop is a distributed master-slave that consists of the Hadoop Distributed File System (HDFS) for storage and Map-Reduce for computational capabilities.

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

The Apache Hadoop for Ubuntu 15.10 Wily Require an Oracle JDK 8+ Installation on System.

Install Hadoop for Ubuntu 15.10 Wily - Featured

  1. Download Latest Apache Hadoop Stable Release:

    Apache Hadoop Binary tar.gz

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

    Ubuntu Apache Hadoop Stable Quick Start - Extracting tar.gz Archive

  3. Open a Shell Terminal emulator window
    Ctrl+Alt+t
    (Press “Enter” to Execute Commands)

    Install Hadoop for Ubuntu 15.10 Wily - Open Terminal

    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 Required Java JDK 8+ on Ubuntu

    Install Oracle JDK 8+ for Ubuntu

  6. Set JAVA_HOME in Hadoop Env File.

    sudo su

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

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

    Append:

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

    Ctrl+x to Save & Exit from nano Editor :)

  7. Hadoop Configuration for Pseudo-Distributed mode

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

    Append:

    <?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

    Append:

    <?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>

    Last:

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

    Append:

    <?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 Local Path & Environment.

    exit
    cd  
    nano .bashrc

    Inserts:

    HADOOP_HOME=/usr/local/hadoop/nexport PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin/nexport JAVA_HOME=/usr/lib/jvm/<oracleJdkVersion>

    Then Load the 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

    Install Hadoop for Ubuntu 15.10 Wily - Terminal Apache Hadoop HDFS Formatting Success

  11. Starting Up Hadoop Database

    start-all.sh

  12. Apache Hadoop Database Quick Start Guide

    Hadoop MapReduce Quick Start