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See:
Description
| Class Summary | |
|---|---|
| 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 | Deprecated. use UTF8ByteArrayUtils and
StreamKeyValUtil instead |
Hadoop Streaming is a utility which allows users to create and run Map-Reduce jobs with any executables (e.g. Unix shell utilities) as the mapper and/or the reducer.
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