EFFICIENT IMPLEMENTATIONS FOR MAPREDUCE SYSTEMS
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United States of America Patent
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Issued Date -
May 7, 2015
app pub date -
Oct 31, 2014
filing date -
Nov 1, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In some embodiments, a processor configured to function as at least a first Reducer in a MapReduce system may receive a set of mapped [key, value] pairs output from a Mapper in the MapReduce system, identify within the set of mapped [key, value] pairs one or more [key, value] pairs for whose keys the first Reducer is not responsible, and transfer those [key, value] pairs to one or more other Reducers in the MapReduce system. In some embodiments, a system including at least one processor may receive a data packet including a set of mapped [key, value] pairs corresponding to a plurality of keys handled by a plurality of Reducers in a MapReduce system. For each mapped [key, value] pair, the system may identify the corresponding key and one of the Reducers responsible for that key, and provide the mapped [key, value] pair to the Reducer for processing.
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