MAPREDUCE-7061. SingleCluster setup document needs to be updated. Contributed by Bharat Viswanadham.

hadoop-common-project/hadoop-common/src/site/markdown/SingleCluster.md.vm

@@ -192,6 +192,14 @@ The following instructions assume that 1. ~ 4. steps of [the above instructions]
             </property>
         </configuration>
 
+        <configuration>
+            <property>
+                <name>mapreduce.application.classpath</name>
+                <value>$HADOOP_MAPRED_HOME/share/hadoop/mapreduce/*:$HADOOP_MAPRED_HOME/share/hadoop/mapreduce/lib/*</value>
+            </property>
+        </configuration>
+
+
     `etc/hadoop/yarn-site.xml`:
 
         <configuration>