Please give the commandline you used. You should have specified the jar containing WordCount class.
On Mon, Jul 12, 2010 at 5:15 AM, james isaac <[email protected]>wrote: > Hi, > > I have just started my career with Hadoop. I tried to execute the example > given in > http://hadoop.apache.org/common/docs/r0.20.1/mapred_tutorial.htmlas > explained in the tutorial. I was not able to execute the program as > described in the tutorial. I am getting the error as shown below. I tried > executing with some other examples. They are also showing the same > “ClassNotFoundException”. I tried to find the solution in various websites > but i could not find it. Please help me to find the problem. > > Exception in thread "main" > java.lang.ClassNotFoundException: org.myorg.WordCount > at java.net.URLClassLoader$1.run(URLClassLoader.java:200) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) > at java.lang.ClassLoader.loadClass(ClassLoader.java:307) > at java.lang.ClassLoader.loadClass(ClassLoader.java:252) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Class.java:247) > at org.apache.hadoop.util.RunJar.main(RunJar.java:149) >
