This tutorial will install Hadoop 2.4.0 on Ubuntu Server.

Prerequisite:

• Ubuntu server 14.04 64 bits

Steps:

• Become root (00:38)
  • sudo -i
• Install Softwares (01:00)
  • apt-get update
  • apt-get -y install python-software-properties openjdk-7-jdk
• Create hadoop user and group (01:40)
  • adduser hadoop
• Get the app and extract it (02:07)
  • cd /usr/local
  • wget http://apache.mirror.iweb.ca/hadoop/common/hadoop-2.4.0/hadoop-2.4.0.tar.gz
  • tar -zxf hadoop-2.4.0.tar.gz
  • ln -s hadoop-2.4.0 hadoop
  • chown -R hadoop:hadoop hadoop-2.4.0 hadoop
  • sudo -i -H -u hadoop
• Configure (04:45)
  • cd /usr/local/hadoop
  • vim etc/hadoop/hadoop-env.sh

export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64
export HADOOP_PREFIX=/usr/local/hadoop
# On 64 bits
export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_PREFIX/lib/native
export HADOOP_OPTS="-Djava.library.path=$HADOOP_PREFIX/lib"

• Try the command line (06:32)
  • bin/hadoop

• Test (07:05)
  • mkdir input
  • cp etc/hadoop/*.xml input
  • bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.4.0.jar grep input output ‘dfs[a-z.]+’
  • cat output/*
  • rm -rf input output