public static class DistSum.ReduceSide.SummingReducer extends Reducer<IntWritable,SummationWritable,NullWritable,TaskResult>
Reducer.Context
Constructor and Description |
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DistSum.ReduceSide.SummingReducer() |
Modifier and Type | Method and Description |
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protected void |
reduce(IntWritable index,
Iterable<SummationWritable> sums,
Reducer.Context context)
This method is called once for each key.
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protected void reduce(IntWritable index, Iterable<SummationWritable> sums, Reducer.Context context) throws IOException, InterruptedException
Reducer
reduce
in class Reducer<IntWritable,SummationWritable,NullWritable,TaskResult>
IOException
InterruptedException
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