org.apache.hadoop.tools

Class HadoopArchives

java.lang.Object

org.apache.hadoop.tools.HadoopArchives

All Implemented Interfaces:

Configurable, Tool

public class HadoopArchives
extends Object
implements Tool

a archive creation utility. This class provides methods that can be used to create hadoop archives. For understanding of Hadoop archives look at HarFileSystem.

Field Summary

Fields

Modifier and Type	Field and Description
static int	VERSION

Constructor Summary

Constructors

Constructor and Description
HadoopArchives(Configuration conf)

Method Summary

Methods

Modifier and Type	Method and Description
Configuration	getConf() Return the configuration used by this object.
static void	main(String[] args) the main functions
int	run(String[] args) the main driver for creating the archives it takes at least three command line parameters.
void	setConf(Configuration conf) Set the configuration to be used by this object.

Methods inherited from class java.lang.Object

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

Field Detail

VERSION

public static final int VERSION

See Also:

Constant Field Values

Constructor Detail

HadoopArchives

public HadoopArchives(Configuration conf)

Method Detail

setConf

public void setConf(Configuration conf)

Description copied from interface: Configurable

Set the configuration to be used by this object.

Specified by:

setConf in interface Configurable

getConf

public Configuration getConf()

Description copied from interface: Configurable

Return the configuration used by this object.

Specified by:

getConf in interface Configurable

run

public int run(String[] args)
        throws Exception

the main driver for creating the archives it takes at least three command line parameters. The parent path, The src and the dest. It does an lsr on the source paths. The mapper created archuves and the reducer creates the archive index.

Specified by:

run in interface Tool

Parameters:

args - command specific arguments.

Returns:

exit code.

Throws:

Exception

main

public static void main(String[] args)

the main functions