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Re: Trouble in running MapReduce application
Thank you very much Harsh,

Now, as I promised earlier I am much obliged to you.

But, now I solved that problem by just changing the directories then again
creating a jar file of org. but I am getting this error:

1.) What I got
------------------------------------------------------------------------------
[hadoop@ADUAE042-LAP-V flowclasses_18_02]$ hadoop jar flow19028pm.jar
org.myorg.MapReduce /home/hadoop/project/hadoop-data/NetFlow 19_02.out
Warning: $HADOOP_HOME is deprecated.

Exception in thread "main" java.lang.UnsupportedClassVersionError:
org/myorg/MapReduce : 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)

2.) How I create my jar
-------------------------------------------------------------------------------------
[hadoop@ADUAE042-LAP-V flowclasses_18_02]$ jar cvf flow19028pm.jar org
added manifest
adding: org/(in = 0) (out= 0)(stored 0%)
adding: org/myorg/(in = 0) (out= 0)(stored 0%)
adding: org/myorg/MapReduce$FlowPortReducer.class(in = 1661) (out690)(deflated 58%)
adding: org/myorg/MapReduce.class(in = 1587) (out= 903)(deflated 43%)
adding: org/myorg/MapReduce$FlowPortMapper.class(in = 1874) (out823)(deflated 56%)

3.) Content of my jar file
---------------------------------------------------------------------------------------
[hadoop@ADUAE042-LAP-V flowclasses_18_02]$ jar tf flow19028pm.jar
META-INF/
META-INF/MANIFEST.MF
org/
org/myorg/
org/myorg/MapReduce$FlowPortReducer.class
org/myorg/MapReduce.class
org/myorg/MapReduce$FlowPortMapper.class
-----------------------------------------------------------------------------------------
Thank you very much.
On Tue, Feb 19, 2013 at 8:20 PM, Harsh J <[EMAIL PROTECTED]> wrote:

> Your point (4) explains the problem. The jar packed structure should
> look like the below, and not how it is presently (one extra top level
> dir is present):
>
> META-INF/
> META-INF/MANIFEST.MF
> org/
> org/myorg/
> org/myorg/WordCount.class
> org/myorg/WordCount$TokenizerMapper.class
> org/myorg/WordCount$IntSumReducer.class
>
> On Tue, Feb 19, 2013 at 9:29 PM, Fatih Haltas <[EMAIL PROTECTED]>
> 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:
> >
>  *************************************************************************