Yes I am using hadoop-0.12.3. Thanks A
On 5/29/07 1:17 PM, "Mahadev Konar" <[EMAIL PROTECTED]> wrote: > Hi Avinash, > Can you explain how you are running the wordcount example? Also, which > version of Hadoop are you using? I would really recommend using 0.12.3. > > Regards > Mahadev > >> > -----Original Message----- >> > From: Phantom [mailto:[EMAIL PROTECTED] >> > Sent: Tuesday, May 29, 2007 1:10 PM >> > To: [email protected] >> > Subject: Classpath setting problem for Map tasks >> > >> > How do I specify the classpath via the JobConf ? In my jobtracker web UI I >> > see a whole slew of ClassNotFoundException's for the WordCount$MapClass. >> > The >> > stack trace is pasted below. But how do I fix this - just pass the -cp >> > <classpath> to the mapred.child.java.opts property of the JobConf ? >> > exporting CLASSPATH doesn't seem to work.hh >> > >> > Thanks >> > Avinash >> > >> > java.lang.RuntimeException: java.lang.RuntimeException: >> > java.lang.ClassNotFoundException: >> > org.apache.hadoop.examples.WordCount$MapClass >> > at >> > org.apache.hadoop.conf.Configuration.getClass(Configuration.java:344) >> > at org.apache.hadoop.mapred.JobConf.getMapperClass(JobConf.java:459) >> > at org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34) >> > at >> > org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:58) >> > at >> > org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:82 >> > ) >> > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:170) >> > at >> > org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1445) >> > Caused by: java.lang.RuntimeException: >> > java.lang.ClassNotFoundException: >> > org.apache.hadoop.examples.WordCount$MapClass >> > at >> > org.apache.hadoop.conf.Configuration.getClass(Configuration.java:328) >> > at >> > org.apache.hadoop.conf.Configuration.getClass(Configuration.java:339) >> > ... 6 more >> > Caused by: java.lang.ClassNotFoundException: >> > org.apache.hadoop.examples.WordCount$MapClass >> > at java.net.URLClassLoader$1.run(URLClassLoader.java:200) >> > at java.security.AccessController.doPrivileged(Native Method) >> > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) >> > at java.lang.ClassLoader.loadClass(ClassLoader.java:306) >> > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268) >> > at java.lang.ClassLoader.loadClass(ClassLoader.java:251) >> > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) >> > at java.lang.Class.forName0(Native Method) >> > at java.lang.Class.forName(Class.java:242) >> > at >> > org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:315 >> > ) >> > at >> > org.apache.hadoop.conf.Configuration.getClass(Configuration.java:326) >> > ... 7 more >> > >> > java.lang.RuntimeException: java.lang.RuntimeException: >> > java.lang.ClassNotFoundException: >> > org.apache.hadoop.examples.WordCount$MapClass >> > at >> > org.apache.hadoop.conf.Configuration.getClass(Configuration.java:344) >> > at org.apache.hadoop.mapred.JobConf.getMapperClass(JobConf.java:459) >> > at org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34) >> > at >> > org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:58) >> > at >> > org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:82 >> > ) >> > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:170) >> > at >> > org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1445) >> > Caused by: java.lang.RuntimeException: >> > java.lang.ClassNotFoundException: >> > org.apache.hadoop.examples.WordCount$MapClass >> > at >> > org.apache.hadoop.conf.Configuration.getClass(Configuration.java:328) >> > at >> > org.apache.hadoop.conf.Configuration.getClass(Configuration.java:339) >> > ... 6 more >> > Caused by: java.lang.ClassNotFoundException: >> > org.apache.hadoop.examples.WordCount$MapClass >> > at java.net.URLClassLoader$1.run(URLClassLoader.java:200) >> > at java.security.AccessController.doPrivileged(Native Method) >> > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) >> > at java.lang.ClassLoader.loadClass(ClassLoader.java:306) >> > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268) >> > at java.lang.ClassLoader.loadClass(ClassLoader.java:251) >> > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) >> > at java.lang.Class.forName0(Native Method) >> > at java.lang.Class.forName(Class.java:242) >> > at >> > org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:315 >> > ) >> > at >> > org.apache.hadoop.conf.Configuration.getClass(Configuration.java:326) >> > ... 7 more > >
