Package org.apache.hadoop.io

Class MapFile.Merger

java.lang.Object

org.apache.hadoop.io.MapFile.Merger

Enclosing class:

MapFile

public static class MapFile.Merger
extends Object

Class to merge multiple MapFiles of same Key and Value types to one MapFile

Constructor Summary

Constructors

Constructor	Description
Merger(Configuration conf)

Method Summary

Modifier and Type	Method	Description
void	merge(Path[] inMapFiles, boolean deleteInputs, Path outMapFile)	Merge multiple MapFiles to one Mapfile.

Methods inherited from class java.lang.Object

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

Constructor Details

Merger

public Merger(Configuration conf)
       throws IOException

Throws:

IOException

Method Details

merge

public void merge(Path[] inMapFiles,
 boolean deleteInputs,
 Path outMapFile)
           throws IOException

Merge multiple MapFiles to one Mapfile.

Parameters:

inMapFiles - input inMapFiles.

deleteInputs - deleteInputs.

outMapFile - input outMapFile.

Throws:

IOException - raised on errors performing I/O.