Hi
I' trying to modify the word count example
(http://wiki.apache.org/hadoop/WordCount) using the new api
(org.apache.hadoop.mapreduce.*). I run the job on a remote
pseudo-distributed cluster. It works fine with the old api, but when I
using the new one, i'm getting this:
11/11/24 11:28:02 INFO mapred.JobClient: Task Id :
attempt_201111241046_0005_m_000000_0, Status : FAILED
java.lang.RuntimeException: java.lang.ClassNotFoundException:
WordCountNewAPI$WordCountMapper
at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:866)
at
org.apache.hadoop.mapreduce.JobContext.getMapperClass(JobContext.java:199)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:719)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
Caused by: java.lang.ClassNotFoundException: WordCountNewAPI$WordCountMapper
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at
org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:819)
at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:864)
... 8 more
The sources are in the attachment
Regards
Denis
