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Posted to general@hadoop.apache.org by abc xyz <fa...@yahoo.com> on 2010/06/29 19:39:42 UTC

Reduce-side join

Hello everyone,

I am trying to use the hadoop's default 
reduce-side join. I want to use the TaggedMapOutput, DataJoinMapperBase, and DataJoinReducerBase classes. I have added the hadoop's datajoin jar file in my build path but still i get the following runtime error:

java.lang.NoClassDefFoundError: org/apache/hadoop/contrib/utils/join/TaggedMapOutput

Where possibly is the error? Please guide me.

Cheers