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Packages that use Reducer | |
org.apache.hadoop.examples | Hadoop example code. |
org.apache.hadoop.mapred.lib | Library of generally useful mappers, reducers, and partitioners. |
Uses of Reducer in org.apache.hadoop.examples |
Classes in org.apache.hadoop.examples that implement Reducer | |
static class |
WordCount.Reduce
A reducer class that just emits the sum of the input values. |
Uses of Reducer in org.apache.hadoop.mapred.lib |
Classes in org.apache.hadoop.mapred.lib that implement Reducer | |
class |
IdentityReducer
Performs no reduction, writing all input values directly to the output. |
class |
LongSumReducer
A Reducer that sums long values. |
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