请参阅: 说明
| 类 | 说明 |
|---|---|
| AutoInputFormat |
An
InputFormat that tries to deduce the types of the input files
automatically. |
| DumpTypedBytes |
Utility program that fetches all files that match a given pattern and dumps
their content to stdout as typed bytes.
|
| Environment |
This is a class used to get the current environment
on the host machines running the map/reduce.
|
| HadoopStreaming |
The main entrypoint.
|
| JarBuilder |
This class is the main class for generating job.jar
for Hadoop Streaming jobs.
|
| LoadTypedBytes |
Utility program that reads typed bytes from standard input and stores them in
a sequence file for which the path is given as an argument.
|
| PathFinder |
Maps a relative pathname to an absolute pathname using the
PATH enviroment.
|
| PipeCombiner | |
| PipeMapper |
A generic Mapper bridge.
|
| PipeMapRed |
Shared functionality for PipeMapper, PipeReducer.
|
| PipeMapRunner<K1,V1,K2,V2> | |
| PipeReducer |
A generic Reducer bridge.
|
| StreamBaseRecordReader |
Shared functionality for hadoopStreaming formats.
|
| StreamInputFormat |
An input format that selects a RecordReader based on a JobConf property.
|
| StreamJob |
All the client-side work happens here.
|
| StreamKeyValUtil | |
| StreamUtil |
Utilities not available elsewhere in Hadoop.
|
| StreamXmlRecordReader |
A way to interpret XML fragments as Mapper input records.
|
| UTF8ByteArrayUtils | 已过时
use
UTF8ByteArrayUtils and
StreamKeyValUtil instead |
Copyright © 2009 The Apache Software Foundation