Step by step procedure for HADOOP installation on UBUNTU
Open terminal in UBUNTU and execute the fallowing commands one by one 1)sudo apt update 2)sudo apt install openjdk-8-jdk -y 3)java -version; javac -version 4)sudo apt install openssh-server openssh-client -y 5)ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa 6)cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys 7)chmod 0600 ~/.ssh/authorized_keys 8)ssh localhost 9)wget https://downloads.apache.org/hadoop/common/hadoop-3.2.1/hadoop-3.2.1.tar.gz 10)tar xzf hadoop-3.2.1.tar.gz 11)sudo nano .bashrc #Hadoop Related Options export HADOOP_HOME=/home/hadoop-3.2.1 export HADOOP_INSTALL=$HADOOP_HOME export HADOOP_MAPRED_HOME=$HADOOP_HOME export HADOOP_COMMON_HOME=$HADOOP_HOME export HADOOP_HDFS_HOME=$HADOOP_HOME export YARN_HOME=$HADOOP_HOME export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native export PATH=$PATH:$HADOOP_HOME/sbin:$HADOOP_HOME/bin export HADOOP_OPTS=”-Djava.library.path=$HADOOP_HOME/lib/native” 12)source ~/.bashrc 13)sudo nano $HADOOP_HOME/etc/hadoop/hadoop-env.sh expor