Package | Description |
---|---|
org.apache.hadoop.mapred |
A software framework for easily writing applications which process vast
amounts of data (multi-terabyte data-sets) parallelly on large clusters
(thousands of nodes) built of commodity hardware in a reliable, fault-tolerant
manner.
|
org.apache.hadoop.mapred.lib |
Library of generally useful mappers, reducers, and partitioners.
|
org.apache.hadoop.streaming |
Hadoop Streaming is a utility which allows users to create and run
Map-Reduce jobs with any executables (e.g.
|
Modifier and Type | Class and Description |
---|---|
class |
MapRunner<K1,V1,K2,V2>
Default
MapRunnable implementation. |
Modifier and Type | Method and Description |
---|---|
Class<? extends MapRunnable> |
JobConf.getMapRunnerClass()
Deprecated.
Get the
MapRunnable class for the job. |
Modifier and Type | Method and Description |
---|---|
void |
JobConf.setMapRunnerClass(Class<? extends MapRunnable> theClass)
Deprecated.
Expert: Set the
MapRunnable class for the job. |
Modifier and Type | Class and Description |
---|---|
class |
MultithreadedMapRunner<K1,V1,K2,V2>
Multithreaded implementation for @link org.apache.hadoop.mapred.MapRunnable.
|
Modifier and Type | Class and Description |
---|---|
class |
PipeMapRunner<K1,V1,K2,V2> |
Copyright © 2010 The Apache Software Foundation