You should add the jar to the classpath of your eclipse project.  Right
click the jar and choose Build path ---> Add to Build Path.

Jeff Zhang



On Fri, Dec 18, 2009 at 9:24 AM, Farhan Husain <[email protected]>wrote:

> I tried to do that but it did not work. I copied the jar file to the
> eclipse
> project folder, in the bin directory, in the directory inside bin where my
> main class file is, in hadoop directory and in hadoop's lib directory. None
> of these worked. I am still getting the following error:
>
> 09/12/18 11:17:58 WARN mapred.JobClient: No job jar file set.  User classes
> may not be found. See JobConf(Class) or JobConf#setJar(String).
>
> I have not used any deprecated classes/methods yet it refers to the
> deprecated class JobConf. Should I fall back to the old deprecated API of
> 0.18.3 which I am used to work with? Please provide suggestions.
>
> Thanks,
> Farhan
>
> On Thu, Dec 17, 2009 at 7:10 PM, Jeff Zhang <[email protected]> wrote:
>
> > You should put the jar on your classpath, and then hadoop will find the
> jar
> > which contain the class you specified.
> >
> > Jeff Zhang
> >
> >
> > 2009/12/17 Farhan Husain <[email protected]>
> >
> > > Where should I put the jar file then? Using the setJar method I could
> > > specify a local file system path to the jar file.
> > >
> > > 2009/12/18 Jeff Zhang <[email protected]>
> > >
> > > > You can set jar file by using Job. setJarByClass(Class<?> cls)
> > > >
> > > >
> > > > Jeff Zhang
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: Farhan Husain [mailto:[email protected]]
> > > > Sent: 2009年12月17日 14:44
> > > > To: [email protected]
> > > > Subject: Alternative to JobConf
> > > >
> > > > The *org.apache.hadoop.mapred.JobConf* class is deprecated in version
> > > > 0.20.1. I tried to use the *org.apache.hadoop.mapreduce.Job* class
> > > instead
> > > > but found no way to set the jar file. Can anyone tell me how to run a
> > job
> > > > with no deprecated API in version 0.20.1?
> > > >
> > > > Thanks,
> > > > Farhan
> > > >
> > > >
> > >
> >
>

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