How do I build/run this simple Mahout program without getting exceptions?

Question

I would like to run this code which I found in Mahout In Action:

package org.help;

import java.io.IOException;
import java.util.ArrayList;
import java.util.         


        

Answer 1

What I did is to set the HADOOP_CLASSPATH with my jar and all the mahout jar files as shown below.

export HADOOP_CLASSPATH=/home/xxx/my.jar:/opt/cloudera/parcels/CDH-4.3.0-1.cdh4.3.0.p0.22/lib/mahout/mahout-core-0.7-cdh4.3.0.jar:/opt/cloudera/parcels/CDH-4.3.0-1.cdh4.3.0.p0.22/lib/mahout/mahout-core-0.7-cdh4.3.0-job.jar:/opt/cloudera/parcels/CDH-4.3.0-1.cdh4.3.0.p0.22/lib/mahout/mahout-examples-0.7-cdh4.3.0.jar:/opt/cloudera/parcels/CDH-4.3.0-1.cdh4.3.0.p0.22/lib/mahout/mahout-examples-0.7-cdh4.3.0-job.jar:/opt/cloudera/parcels/CDH-4.3.0-1.cdh4.3.0.p0.22/lib/mahout/mahout-integration-0.7-cdh4.3.0.jar:/opt/cloudera/parcels/CDH-4.3.0-1.cdh4.3.0.p0.22/lib/mahout/mahout-math-0.7-cdh4.3.0.jar

Then I was able to run hadoop com.mycompany.mahout.CSVtoVector iris/nb/iris1.csv iris/nb/data/iris.seq

So you have to include all your jars and the mahout jar in the HADOOP_CLASSPATH and then you can just run your class with
hadoop