org.apache.accumulo.examples.simple.mapreduce

Class TableToFile

java.lang.Object

org.apache.hadoop.conf.Configured

org.apache.accumulo.examples.simple.mapreduce.TableToFile

All Implemented Interfaces:

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

public class TableToFile
extends org.apache.hadoop.conf.Configured
implements org.apache.hadoop.util.Tool

Takes a table and outputs the specified column to a set of part files on hdfs accumulo accumulo.examples.mapreduce.TableToFile <username> <password> <tablename> <column> <hdfs-output-path>

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TableToFile.TTFMapper The Mapper class that given a row number, will generate the appropriate output line.

Constructor Summary

Constructors

Constructor and Description
TableToFile()

Method Summary

Methods

Modifier and Type	Method and Description
static void	main(String[] args)
int	run(String[] args)

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Constructor Detail

TableToFile

public TableToFile()

Method Detail

run

public int run(String[] args)
        throws IOException,
               InterruptedException,
               ClassNotFoundException,
               AccumuloSecurityException

Specified by:

run in interface org.apache.hadoop.util.Tool

Throws:

IOException

InterruptedException

ClassNotFoundException

AccumuloSecurityException

main

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

Parameters:

args - instanceName zookeepers username password table columns outputpath

Throws:

Exception