org.apache.hadoop.tools

类 HadoopArchives

java.lang.Object

org.apache.hadoop.tools.HadoopArchives

所有已实现的接口:

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.

字段概要

字段

限定符和类型	字段和说明
static int	VERSION

构造器概要

构造器

构造器和说明
HadoopArchives(Configuration conf)

方法概要

方法

限定符和类型	方法和说明
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.

从类继承的方法 java.lang.Object

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

字段详细资料

VERSION

public static final int VERSION

另请参阅:

常量字段值

构造器详细资料

HadoopArchives

public HadoopArchives(Configuration conf)

方法详细资料

setConf

public void setConf(Configuration conf)

从接口复制的说明: Configurable

Set the configuration to be used by this object.

指定者:

setConf 在接口中 Configurable

getConf

public Configuration getConf()

从接口复制的说明: Configurable

Return the configuration used by this object.

指定者:

getConf 在接口中 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.

指定者:

run 在接口中 Tool

参数:

args - command specific arguments.

返回:

exit code.

抛出:

Exception

main

public static void main(String[] args)

the main functions