Step-by-step – Hadoop Installation in Ubuntu 20.04 Guide

Installing

2. 2. Downloading Hadoop

   Download Latest Apache Hadoop Stable Release

   Apache Hadoop Binary tar.gz

   Apache Hadoop Binaries.

3. 3. Extracting Hadoop

   Then Extract into /tmp
   Possibly Double-Click/Right-Click and Open with Ubuntuive Manager:

   

   Or from Shell:

   tar xvzf *hadoop*tar.gz -C /tmp

4. 4. Installing Hadoop

   And to Install Apache Hadoop
   Get SuperUser Privileges (This simply to make shorter the command’s series):

   sudo su

   If Got “User is Not in Sudoers file” then see: How to Enable sudo
   Then Switch the contents with:

   mv /tmp/hadoop* /usr/local/

   Moreover, make an hadoop symlink directory:

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

5. 5. Setting Up Directories

   Make Hadoop Needed Directories:

   First, Make the Logs Dir:

   mkdir /usr/local/hadoop/logs

   Giving Writing Permissions:

   chmod 777 /usr/local/hadoop/logs

   Next Make the Cache Dir:

   mkdir /usr/local/hadoop/cache

   Same Writing Permissions as for Logs:

   chmod 777 /usr/local/hadoop/cache

   And then also the Temporary Dir:

   mkdir /usr/local/hadoop/tmp

   And Set the root as Owner:

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

6. 6. Installing Java JDK

   How to Install Required Java JDK 8+ on Ubuntu

   Install Oracle JDK 8+ for Ubuntu

   Installing Java Oracle JDK 8+ on Ubuntu.

7. 7. Setting Up Variable

   Set JAVA_HOME in Hadoop Env File
   First, Make the Conf directory:

   mkdir /usr/local/hadoop/conf

   And then Make an Env file:

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

   So now Append:

   export JAVA_HOME=/usr/lib/jvm/[oracleJdkVersion]

   Change [oracleJdkVersion] with the current Version:
   Ctrl+x to Save & Exit from nano Editor :)

   Eclipse Hadoop Integration with Free Plugin.

   Hadoop Eclipse Plugin SetUp

   SetUp Eclipse Hadoop Plugin.