Thank you very much. When i tried with wordcount_classes.org.myorg.WordCount, I am getting the following error:
[hadoop@ADUAE042-LAP-V project]$ hadoop jar wordcount_19_02.jar wordcount_classes.org.myorg.WordCount /home/hadoop/project/hadoop-data/NetFlow 19_02_wordcount.out Warning: $HADOOP_HOME is deprecated. Exception in thread "main" java.lang.UnsupportedClassVersionError: wordcount_classes/org/myorg/WordCount : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:634) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at java.lang.ClassLoader.loadClass(ClassLoader.java:321) at java.lang.ClassLoader.loadClass(ClassLoader.java:266) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:266) at org.apache.hadoop.util.RunJar.main(RunJar.java:149) On Tue, Feb 19, 2013 at 8:10 PM, Hemanth Yamijala <yhema...@thoughtworks.com > wrote: > Sorry. I did not read the mail correctly. I think the error is in how the > jar has been created. The classes start with root as wordcount_classes, > instead of org. > > Thanks > Hemanth > > > On Tuesday, February 19, 2013, Hemanth Yamijala wrote: > >> Have you used the Api setJarByClass in your main program? >> >> >> http://hadoop.apache.org/docs/r1.0.4/api/org/apache/hadoop/mapreduce/Job.html#setJarByClass(java.lang.Class) >> >> On Tuesday, February 19, 2013, Fatih Haltas wrote: >> >>> Hi everyone, >>> >>> I know this is the common mistake to not specify the class adress while >>> trying to run a jar, however, >>> although I specified, I am still getting the ClassNotFound exception. >>> >>> What may be the reason for it? I have been struggling for this problem >>> more than a 2 days. >>> I just wrote different MapReduce application for some anlaysis. I got >>> this problem. >>> >>> To check, is there something wrong with my system, i tried to run >>> WordCount example. >>> When I just run hadoop-examples wordcount, it is working fine. >>> >>> But when I add just "package org.myorg;" command at the beginning, it >>> doesnot work. >>> >>> Here is what I have done so far >>> ************************************************************************* >>> 1. I just copied wordcount code from the apaches own examples source >>> code and I just changed package decleration as "package org.myorg;" >>> >>> ************************************************************************** >>> 2. Then I tried to run that command: >>> >>> ************************************************************************* >>> "hadoop jar wordcount_19_02.jar org.myorg.WordCount >>> /home/hadoop/project/hadoop-data/NetFlow 19_02_wordcount.output" >>> ************************************************************************* >>> 3. I got following error: >>> >>> ************************************************************************** >>> [hadoop@ADUAE042-LAP-V project]$ hadoop jar wordcount_19_02.jar >>> org.myorg.WordCount /home/hadoop/project/hadoop-data/NetFlow >>> 19_02_wordcount.output >>> Warning: $HADOOP_HOME is deprecated. >>> >>> Exception in thread "main" java.lang.ClassNotFoundException: >>> org.myorg.WordCount >>> at java.net.URLClassLoader$1.run(URLClassLoader.java:217) >>> at java.security.AccessController.doPrivileged(Native Method) >>> at java.net.URLClassLoader.findClass(URLClassLoader.java:205) >>> at java.lang.ClassLoader.loadClass(ClassLoader.java:321) >>> at java.lang.ClassLoader.loadClass(ClassLoader.java:266) >>> at java.lang.Class.forName0(Native Method) >>> at java.lang.Class.forName(Class.java:266) >>> at org.apache.hadoop.util.RunJar.main(RunJar.java:149) >>> >>> >>> ************************************************************************** >>> 4. This is the content of my .jar file: >>> **************************************************** >>> [hadoop@ADUAE042-LAP-V project]$ jar tf wordcount_19_02.jar >>> META-INF/ >>> META-INF/MANIFEST.MF >>> wordcount_classes/ >>> wordcount_classes/org/ >>> wordcount_classes/org/myorg/ >>> wordcount_classes/org/myorg/WordCount.class >>> wordcount_classes/org/myorg/WordCount$TokenizerMapper.class >>> wordcount_classes/org/myorg/WordCount$IntSumReducer.class >>> ********************************************************** >>> 5. This is the 'ls' output of my working directory: >>> ********************************************************** >>> [hadoop@ADUAE042-LAP-V project]$ ls >>> flowclasses_18_02 flowclasses_18_02.jar hadoop-1.0.4 >>> hadoop-1.0.4.tar.gz hadoop-data MapReduce.java sample >>> wordcount_19_02.jar wordcount_classes WordCountClasses WordCount.java >>> ************************************************************* >>> So as you see, package decleration is fine but I am really helpless, I >>> googled but they are all saying samething you should specify the package >>> hierarchy of your main class. I did know it already I am specifying but >>> doesn't work. >>> >>> I would be much obliged to anyone helped me >>> >>> Regards, >>> >>> >>>