Details
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Feature Request
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Status: Closed (View Workflow)
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Major
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Resolution: Done
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5.0.0.FINAL
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None
Description
Add functionality to optionally use a combiner between Map and Reduce phases (see http://research.google.com/archive/mapreduce.html part 4.3 Combiner Function). This enables to adjust API to be less restrictive - Reduce.reduce function could consume and return different types of objects.