Hadoop Mapreduce Error Could not find or load main class com sun tools javac Main

Question

I have properly installed hadoop but when I run the following command:

Compile WordCount.java and create a jar:
$ bin/hadoop com.sun.tools.javac.Main WordCount.java 

I get this error:

Error: Could not find or load main class com.sun.tools.javac.Main

Answer 1

You have to add HADOOP_CLASSPATH environment parameter:

export HADOOP_CLASSPATH=/usr/lib/jvm/java-7-openjdk-amd64/lib/tools.jar