It would help if you could explain a bit more about what you changed. It is hard to debug something simply by saying it compiles but does not run correctly. You probably want to check the logs/UI for the JT and try to trace down the path this job is taking.
--Bobby On 9/19/12 2:01 AM, "Li Shengmei" <lisheng...@ict.ac.cn> wrote: >Hi,all > > I revise the source code of hadoop-1.0.3 and use ant to recompile >hadoop. It compiles successfully. Then I "jar cvf hadoop-core-1.0.3.jar *" >and copy the new hadoop-core-1.0.3.jar to overwirite the $HADOOP_HOME/ >hadoop-core-1.0.3.jar in every node machine. Then I use hadoop to >test the wordcount application. But the application halts at map 0% reduce >0%. > > Does anyone give suggestions? > >Thanks a lot. > > > >May > > > > > > >
