Package org.apache.hadoop.mapreduce.lib.reduce
package org.apache.hadoop.mapreduce.lib.reduce
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ClassesClassDescriptionIntSumReducer<Key>LongSumReducer<KEY>WrappedReducer<KEYIN,
VALUEIN, KEYOUT, VALUEOUT> AReducerwhich wraps a given one to allow for customReducer.Contextimplementations.