org.apache.hadoop.hbase.mapreduce

Class RowCounter

java.lang.Object

org.apache.hadoop.hbase.mapreduce.RowCounter

@InterfaceAudience.Public
 @InterfaceStability.Stable
public class RowCounter
extends Object

A job with a just a map phase to count rows. Map outputs table rows IF the input row has columns that have content.

Constructor Summary

Constructors

Constructor and Description
RowCounter()

Method Summary

Modifier and Type	Method and Description
static Job	createSubmittableJob(Configuration conf, String[] args) Sets up the actual job.
static void	main(String[] args) Main entry point.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RowCounter

public RowCounter()

Method Detail

createSubmittableJob

public static Job createSubmittableJob(Configuration conf,
                                       String[] args)
                                throws IOException

Sets up the actual job.

Parameters:

conf - The current configuration.

args - The command line parameters.

Returns:

The newly created job.

Throws:

IOException - When setting up the job fails.

main

public static void main(String[] args)
                 throws Exception

Main entry point.

Parameters:

args - The command line parameters.

Throws:

Exception - When running the job fails.