Error in integrating Map-Reduce with Oozie - mapreduce

Question

When i try to run a word-count prg in mapreduce using oozie.. It just reads the input records and displays it. I guess its not even invoking my mapper and reducer classes.Since i am using the new API, have included the new-api property tag also in workflow.xml.
Map-reduce snippet:
public class WordCount {
public static class Map extends Mapper<LongWritable, Text, Text, IntWritable> {
private final static IntWritable one = new IntWritable(1);
private Text word = new Text();
public void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {
String line = value.toString();
StringTokenizer tokenizer = new StringTokenizer(line);
while (tokenizer.hasMoreTokens()) {
word.set(tokenizer.nextToken());
context.write(word, one);
}
}
}
public static class Reduce extends Reducer<Text,IntWritable,Text,IntWritable> {
public void reduce(Text key, Iterable<IntWritable> values, Context context)
throws IOException, InterruptedException {
int sum = 0;
for (IntWritable val : values) {
sum += val.get();
}
context.write(key, new IntWritable(sum));
}
}
my workflow.xml:
<?xml version="1.0" encoding="UTF-8"?>
<workflow-app xmlns='uri:oozie:workflow:0.1' name="wordcount">
<start to="wc-node" />
<action name="wc-node">
<map-reduce>
<job-tracker>${jobTracker}</job-tracker>
<name-node>${nameNode}</name-node>
<prepare>
<delete path="${nameNode}/user/${wf:user()}/${wordcountRoot}/output- data/${outputDir}"/>
</prepare>
<configuration>
<property>
<name>mapred.mapper.new-api</name>
<value>true</value>
</property>
<property>
<name>mapred.reducer.new-api</name>
<value>true</value>
</property>
<property>
<name>mapreduce.map.class</name>
<value>WordCount.Map</value>
</property>
<property>
<name>mapreduce.reduce.class</name>
<value>WordCount.Reduce</value>
</property>
<property>
<name>mapred.output.key.class</name>
<value>org.apache.hadoop.io.Text</value>
</property>
<property>
<name>mapred.output.value.class</name>
<value>org.apache.hadoop.io.IntWritable</value>
</property>
<property>
<name>mapred.map.tasks</name>
<value>1</value>
</property>
<property>
<name>mapred.input.dir</name>
<value>/user/${wf:user()}/${wordcountRoot}/input-data</value>
</property>
<property>
<name>mapred.output.dir</name>
<value>/user/${wf:user()}/${wordcountRoot}/output-data/${outputDir}</value>
</property>
<property>
<name>mapred.job.queue.name</name>
<value>${queueName}</value>
</property>
<property>
<name>mapreduce.job.acl-view-job</name>
<value>*</value>
</property>
<property>
<name>oozie.launcher.mapreduce.job.acl-view-job</name>
<value>*</value>
</property>
</configuration>
</map-reduce>
<ok to="end" />
<error to="fail" />
</action>
<kill name="fail">
<message>Map/Reduce failed</message>
</kill>
<end name="end" />
I referred this link https://cwiki.apache.org/OOZIE/map-reduce-cookbook.html but still no luck.
If any1 has come across this issue, please guide me as to where i am going wrong.
Thanks in advance.

Answer 1

Issue resolved...
While using new mapreduce API..we need to prefix the "$" symbol to the mapper and reducer class name:
<property>
<name>mapreduce.map.class</name>
<value>oozie.WordCount$Map</value>
</property>
<property>
<name>mapreduce.reduce.class</name>
<value>oozie.WordCount$Reduce</value>
</property>