I recently looked into that and came to the same realization. I ended up writing a new input format that did the cartesian product of two tables. But to do that I had to store values for the left configuration and right configuration and then copy over whichever config settings I wanted to use for the AIF depending on which split i needed in the RecordReader.
It would have been awesome if I could have just used the MultipleInputs ... --Kevin On Tue, Nov 5, 2013 at 10:24 AM, Josh Elser <josh.el...@gmail.com> wrote: > In executing some MapReduce over Accumulo with the AccumuloInputFormat, I > came to the realization that AIF fundamentally doesn't work with concepts > like MultipleInputs in Hadoop (http://hadoop.apache.org/ > docs/current/api/org/apache/hadoop/mapreduce/lib/input/MultipleInputs.html). > Given that you can only write one set of configuration for AIF into a > Configuration object, there's not a mechanism to support multiple. This > appears to be the case across all versions. > > Is this correct? Have I overlooked something? >