org.apache.hadoop.hbase.mapreduce

Class RowCounter

java.lang.Object

org.apache.hadoop.hbase.util.AbstractHBaseTool

org.apache.hadoop.hbase.mapreduce.RowCounter

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool

@InterfaceAudience.Public
public class RowCounter
extends AbstractHBaseTool

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

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.util.AbstractHBaseTool

AbstractHBaseTool.OptionsOrderComparator

Field Summary

Fields inherited from class org.apache.hadoop.hbase.util.AbstractHBaseTool

cmdLineArgs, conf, EXIT_FAILURE, EXIT_SUCCESS, LONG_HELP_OPTION, options, SHORT_HELP_OPTION

Constructor Summary

Constructors

Constructor and Description
RowCounter()

Method Summary

Modifier and Type	Method and Description
protected void	addOptions()
org.apache.hadoop.mapreduce.Job	createSubmittableJob(org.apache.hadoop.conf.Configuration conf) Sets up the actual job.
static org.apache.hadoop.mapreduce.Job	createSubmittableJob(org.apache.hadoop.conf.Configuration conf, String[] args) Deprecated. as of release 2.3.0. Will be removed on 4.0.0. Please use main method instead.
protected int	doWork()
static void	main(String[] args) Main entry point.
protected org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLineParser	newParser()
protected void	printUsage()
protected void	printUsage(String usageStr, String usageHeader, String usageFooter)
protected void	processOldArgs(List<String> args)
protected void	processOptions(org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine cmd)

Methods inherited from class org.apache.hadoop.hbase.util.AbstractHBaseTool

addOption, addOptNoArg, addOptNoArg, addOptWithArg, addOptWithArg, addRequiredOption, addRequiredOptWithArg, addRequiredOptWithArg, doStaticMain, getConf, getOptionAsDouble, getOptionAsInt, getOptionAsLong, parseArgs, parseInt, parseLong, run, setConf

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 org.apache.hadoop.mapreduce.Job createSubmittableJob(org.apache.hadoop.conf.Configuration conf)
                                                     throws IOException

Sets up the actual job.

Parameters:

conf - The current configuration.

Returns:

The newly created job.

Throws:

IOException - When setting up the job fails.

createSubmittableJob

@Deprecated
public static org.apache.hadoop.mapreduce.Job createSubmittableJob(org.apache.hadoop.conf.Configuration conf,
                                                                               String[] args)
                                                                        throws IOException

Deprecated. as of release 2.3.0. Will be removed on 4.0.0. Please use main method instead.

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.

printUsage

protected void printUsage()

Overrides:

printUsage in class AbstractHBaseTool

printUsage

protected void printUsage(String usageStr,
                          String usageHeader,
                          String usageFooter)

Overrides:

printUsage in class AbstractHBaseTool

addOptions

protected void addOptions()

Specified by:

addOptions in class AbstractHBaseTool

processOptions

protected void processOptions(org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine cmd)
                       throws IllegalArgumentException

Specified by:

processOptions in class AbstractHBaseTool

Throws:

IllegalArgumentException

processOldArgs

protected void processOldArgs(List<String> args)

Overrides:

processOldArgs in class AbstractHBaseTool

doWork

protected int doWork()
              throws Exception

Specified by:

doWork in class AbstractHBaseTool

Throws:

Exception

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.

newParser

protected org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLineParser newParser()

Overrides:

newParser in class AbstractHBaseTool