CONFIGURE AND RUN HADOOP AND HDFS
To install Hadoop can also be run on a single-node in a pseudo-distributed mode where each Hadoop daemon runs in a separate Java process. Procedure: Step 1: Download Hadoop 0.18.3 from the following website viz. http://hadoop.apache.org/common/releases.html Step 2: Extract the hadoop tar.gz file as follows:- $tar -xvzf hadoop-0.20.2.tar.gz Step 3: Set the PATH and CLASSPATH variables appropriately in your .profile file and load it. Example: export JAVA_HOME=/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.9 Step 4: The following files will have to be modified to complete the Hadoop setup: Setup NAMENODE service: Open the file and enter the following in between the <configuration></configuration> tag: vi /home/hadoop/hadoop/conf/core-site.xml <configuration> <property> <name>hadoop.tmp.dir</name> <value>ipaddress:port</value> <description>A base for ot...