Make sure you launch as:
bin/hadoop jar hadoop-*-examples.jar grep input output 'dfs[a-z.]+'
Not
bin/hadoop -jar hadoop-*-examples.jar grep input output 'dfs[a-z.]+'
On Mon, Jun 15, 2009 at 8:24 PM, jason hadoop <jason.had...@gmail.com>wrote:
> Your class is not in your jar, or your jar is not avialable in the hadoop
> class path.
>
> On Mon, Jun 15, 2009 at 2:39 AM, bharath vissapragada <
> bhara...@students.iiit.ac.in> wrote:
>
> > Hi all ,
> >
> > When i try to run my own progam (jar file) i get the following error.
> >
> > java.lang.ClassNotFoundException : <file-Name>.class
> > 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:323)
> > at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
> > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
> > at java.lang.Class.forName0(Native Method)
> > at java.lang.Class.forName(Class.java:264)
> > at org.apache.hadoop.util.RunJar.main(RunJar.java:148)
> > at org.apache.hadoop.mapred.JobShell.run(JobShell.java:54)
> > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> > at org.apache.hadoop.mapred.JobShell.main(JobShell.java:68
> >
> >
> > Can anyone tell me the reason(s) for this ..
> >
> > Thanks in advance
> >
>
>
>
> --
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> http://www.apress.com/book/view/9781430219422
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