Infer MapReduce types where possible
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Key: MAPREDUCE-1411
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1411
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: client
Reporter: Tom White
Assignee: Tom White
Currently users must specify the output types of the map and reduce if they are
different to the default (LongWritable keys, Text values). In many cases this
information is available to the system from the user-supplied mapper and
reducer, so it would be nice if the user didn't have to specify them in two
places.
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