Package org.apache.hadoop.examples

Hadoop example code.

See:
Description

Class Summary

AggregateWordCount	This is an example Aggregated Hadoop Map/Reduce application.
AggregateWordCount.WordCountPlugInClass
AggregateWordHistogram	This is an example Aggregated Hadoop Map/Reduce application.
AggregateWordHistogram.AggregateWordHistogramPlugin
ExampleDriver	A description of an example program based on its class and a human-readable description.
Grep
Join	This is the trivial map/reduce program that does absolutely nothing other than use the framework to fragment and sort the input values.
MultiFileWordCount	MultiFileWordCount is an example to demonstrate the usage of MultiFileInputFormat.
MultiFileWordCount.MapClass	This Mapper is similar to the one in WordCount.MapClass.
MultiFileWordCount.MultiFileLineRecordReader	RecordReader is responsible from extracting records from the InputSplit.
MultiFileWordCount.MyInputFormat	To use MultiFileInputFormat, one should extend it, to return a (custom) RecordReader.
MultiFileWordCount.WordOffset	This record keeps <filename,offset> pairs.
PiEstimator	A Map-reduce program to estimaate the valu eof Pi using monte-carlo method.
PiEstimator.PiMapper	Mappper class for Pi estimation.
PiEstimator.PiReducer
RandomTextWriter	This program uses map/reduce to just run a distributed job where there is no interaction between the tasks and each task writes a large unsorted random sequence of words.
RandomWriter	This program uses map/reduce to just run a distributed job where there is no interaction between the tasks and each task write a large unsorted random binary sequence file of BytesWritable.
SleepJob	Dummy class for testing MR framefork.
Sort	This is the trivial map/reduce program that does absolutely nothing other than use the framework to fragment and sort the input values.
WordCount	This is an example Hadoop Map/Reduce application.
WordCount.MapClass	Counts the words in each line.
WordCount.Reduce	A reducer class that just emits the sum of the input values.

Package org.apache.hadoop.examples Description

Hadoop example code.