Help with Map Reduce WordCount Exercise


Hi - I’m trying to run the WordCount exercise on the web console and am coming upon some errors.

I use the standard setup:

export JAVA_HOME=/usr/java/default
export PATH=${JAVA_HOME}/bin:${PATH}
export HADOOP_CLASSPATH=${JAVA_HOME}/lib/tools.jar

But when I try to access the hadoop directory and then create a jar I get errors that no such files or directories exist:

jar cf wc.jar WordCount*.class

How do I correct this so that I can compile a map reduce Java class file and create an executable jar file on the cloudxlab cluster?


Hi, Adam.

The jar file is present at the location below.
Also kindly check the host id.

Now you will be able to do it.
All the best!