public class AggregateWordCount
- extends Object
This is an example Aggregated Hadoop Map/Reduce application. It reads the
text input files, breaks each line into words and counts them. The output is
a locally sorted list of words and the count of how often they occurred.
To run: bin/hadoop jar hadoop-examples-*.jar aggregatewordcount in-dir
out-dir numOfReducers textinputformat
The main driver for word count map/reduce program.
|Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
public static void main(String args)
- The main driver for word count map/reduce program. Invoke this method to
submit the map/reduce job.
IOException - When there is communication problems with the job tracker.
Copyright © 2009 The Apache Software Foundation