Starting with Hadoop

Trying to find simple and authorative documentation for Hadoop is harder than I expected. With the many versions out there it is easy to find documentation for the wrong version and not being able to find what really needs to be done.


  • Hadoop 2.2.0
  • OpenJDK 1.7.0_51
  • Fedora 19

I have set my environment variables in my .bash_profile:

export JAVA_HOME=/usr/lib/jvm/java
export HADOOP_HOME=/opt/hadoop-2.2.0

Configuration file:

<!--?xml version="1.0" encoding="UTF-8"?-->

First few Hadoop commands:

hadoop namenode -format
hadoop namenode

Things to resolve:

$HADOOP_HOME/sbin/ – does not work at all; throws a lot of errors

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Java developper that loves photography and an excellent espresso

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