Hi Markus And Shahab, Thanks for getting back to me, I really appreciate it. LazyOutputFormat did the trick. I tried NUllOutputFormat (job.setOutputFormatClass(NullOutputFormat.class);) before writing to the group but was getting an empty folder.
I looked at LazyOutputFormat, in fact, my mos is written from: http://hadoop.apache.org/docs/r2.3.0/api/org/apache/hadoop/mapreduce/lib/out put/MultipleOutputs.html Just couldn¹t see the wood for the trees ;O) Best, Chris
