| 程序包 | 说明 |
|---|---|
| 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.
|
| 类和说明 |
|---|
| CombineFileSplit
A sub-collection of input files.
|
| 类和说明 |
|---|
| CombineFileSplit
A sub-collection of input files.
|
| InputSampler.Sampler
Interface to sample using an
InputFormat. |
| MultipleOutputFormat
This abstract class extends the FileOutputFormat, allowing to write the
output data to different output files.
|
Copyright © 2009 The Apache Software Foundation