Just run this and make sure you really have the class file in jar "jar -tvf | grep org.postdirekt.hadoop.Map"
if you don't get any output, the you don't have the class file in your jar + Praveen On Dec 28, 2010, at 9:12 AM, Cavus,M.,Fa. Post Direkt wrote: > What must I do James? > > -----Original Message----- > From: James Seigel [mailto:ja...@tynt.com] > Sent: Tuesday, December 28, 2010 4:03 PM > To: common-user@hadoop.apache.org > Subject: Re: ClassNotFoundException > > jar -tvf the jar file and double check that it is a class that is > listed. Can't be in an included jar file. > > Sent from my mobile. Please excuse the typos. > > On 2010-12-28, at 7:58 AM, "Cavus,M.,Fa. Post Direkt" > <m.ca...@postdirekt.de> wrote: > >> Hi, >> >> I process this command: ./hadoop jar /home/userme/hd.jar >> org.postdirekt.hadoop.WordCount gutenberg gutenberberg-output >> >> >> >> and get this why? Because I have org.postdirekt.hadoop.Map in the jar >> File. >> >> >> >> 10/12/28 15:28:30 INFO mapreduce.Job: Task Id : >> attempt_201012281524_0002_m_000000_0, Status : FAILED >> >> java.lang.RuntimeException: java.lang.ClassNotFoundException: >> org.postdirekt.hadoop.Map >> >> at >> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1128) >> >> at >> > org.apache.hadoop.mapreduce.task.JobContextImpl.getMapperClass(JobContex >> tImpl.java:167) >> >> at >> org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:612) >> >> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:328) >> >> at org.apache.hadoop.mapred.Child$4.run(Child.java:217) >> >> at java.security.AccessController.doPrivileged(Native >> Method) >> >> at javax.security.auth.Subject.doAs(Subject.java:396) >> >> at >> > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformatio >> n.java:742) >> >> at org.apache.hadoop.mapred.Child.main(Child.java:211) >> >> Caused by: java.lang.ClassNotFoundException: org.postdirekt.hadoop.Map >> >> 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:307) >> >> at sun.m >> >> 10/12/28 15:28:41 INFO mapreduce.Job: Task Id : >> attempt_201012281524_0002_m_000000_1, Status : FAILED >> >> java.lang.RuntimeException: java.lang.ClassNotFoundException: >> org.postdirekt.hadoop.Map >> >> at >> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1128) >> >> at >> > org.apache.hadoop.mapreduce.task.JobContextImpl.getMapperClass(JobContex >> tImpl.java:167) >> >> at >> org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:612) >> >> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:328) >> >> at org.apache.hadoop.mapred.Child$4.run(Child.java:217) >> >> at java.security.AccessController.doPrivileged(Native >> Method) >> >> at javax.security.auth.Subject.doAs(Subject.java:396) >> >> at >> > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformatio >> n.java:742) >> >> at org.apache.hadoop.mapred.Child.main(Child.java:211) >> >> Caused by: java.lang.ClassNotFoundException: org.postdirekt.hadoop.Map >> >> 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:307) >> >> at sun.m >> >> 10/12/28 15:28:53 INFO mapreduce.Job: Task Id : >> attempt_201012281524_0002_m_000000_2, Status : FAILED >> >> java.lang.RuntimeException: java.lang.ClassNotFoundException: >> org.postdirekt.hadoop.Map >> >> at >> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1128) >> >> at >> > org.apache.hadoop.mapreduce.task.JobContextImpl.getMapperClass(JobContex >> tImpl.java:167) >> >> at >> org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:612) >> >> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:328) >> >> at org.apache.hadoop.mapred.Child$4.run(Child.java:217) >> >> at java.security.AccessController.doPrivileged(Native >> Method) >> >> at javax.security.auth.Subject.doAs(Subject.java:396) >> >> at >> > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformatio >> n.java:742) >> >> at org.apache.hadoop.mapred.Child.main(Child.java:211) >> >> Caused by: java.lang.ClassNotFoundException: org.postdirekt.hadoop.Map >> >> 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:307) >> >> at sun.m >> >> 10/12/28 15:29:09 INFO mapreduce.Job: Job complete: >> job_201012281524_0002 >> >> 10/12/28 15:29:09 INFO mapreduce.Job: Counters: 7 >> >> Job Counters >> >> Data-local map tasks=4 >> >> Total time spent by all maps waiting after >> reserving slots (ms)=0 >> >> Total time spent by all reduces waiting after >> reserving slots (ms)=0 >> >> Failed map tasks=1 >> >> SLOTS_MILLIS_MAPS=45636 >> >> SLOTS_MILLIS_REDUCES=0 >> >> Launched map tasks=4 >> >> >>
