I tried your command and then it shows me as following:
/home/huyong/test/UPPER.class
/home/huyong/test/UPPER.java
Yong
在 2011年6月18日 下午4:29，Dmitriy Ryaboy <dvrya...@gmail.com>写道：
> This usually hapens when you aren't registering what you think you are
> registering.
> try `jar tf /home/huyong/test/myudfs.jar | grep UPPER` and see if you
> get anything.
>
> D
>
> 2011/6/18 勇胡 <yongyong...@gmail.com>:
> > Hi,
> >
> > package myudfs;
> > import java.io.IOException;
> > import org.apache.pig.EvalFunc;
> > import org.apache.pig.data.Tuple;
> > import org.apache.pig.impl.util.*;
> >
> > public class UPPER extends EvalFunc<String>
> > {
> > public String exec(Tuple input) throws IOException {
> > if (input == null || input.size() == 0)
> > return null;
> > try{
> > String str = (String)input.get(0);
> > return str.toUpperCase();
> > }catch(Exception e){
> > throw new IOException(e);
> > }
> > }
> > }
> >
> > This is as same as the example from the Pig website. By the way, I also
> > added the PIG_CLASS. But it still didn't work.
> >
> > Yong
> >
> > 2011/6/18 Jonathan Coveney <jcove...@gmail.com>
> >
> >> Can you paste the content of the UDF?
> >>
> >> 2011/6/18 勇胡 <yongyong...@gmail.com>
> >>
> >> > Hello,
> >> >
> >> > I just tried the example from the pig udf manual step by step. But I
> got
> >> > the
> >> > error information. Can anyone tell me how to solve it?
> >> >
> >> > grunt> REGISTER /home/huyong/test/myudfs.jar;
> >> > grunt> A = LOAD '/home/huyong/test/student.txt' as (name:chararray);
> >> > grunt> B = FOREACH A GENERATE myudfs.UPPER(name);
> >> > 2011-06-18 11:15:38,892 [main] ERROR org.apache.pig.tools.grunt.Grunt
> -
> >> > ERROR 1070: Could not resolve myudfs.UPPER using imports: [,
> >> > org.apache.pig.builtin., org.apache.pig.impl.builtin.]
> >> > Details at logfile: /home/huyong/test/pig_1308388238352.log
> >> >
> >> > I have already registered the udf, why pig tries to search from the
> >> builtin
> >> > path.
> >> >
> >> > Thanks for your help!
> >> >
> >> > Yong Hu
> >> >
> >>
> >
>
