Installation of Single node Hadoop 2.2.0 on Ubuntu

Prerequisite for this is to prepare the environment: Before installing any application or software, update all the packages from all repositories: root@roma-ubuntu :~$ sudo apt-get update For running Hadoop, it requires Java v1.7+, installing java: root@roma-ubuntu :~$ sudo apt-get install openjdk-7-jdk root@roma-ubuntu :~$ java -version java version “1.7.0_25” OpenJDK Runtime Environment (IcedTea 2.3.12) (7u25-2.3.12-4ubuntu3) OpenJDK[…]