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

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.

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

   

   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

   Installing Java Oracle JDK 8+ on 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

    

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