Package org.apache.hadoop.streaming

Class Summary
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.
MergerInputFormat Eventually will be fed TupleInputFormats.
MustangFile A simulation of some Java SE 6 File methods.
MuxOutputFormat A multiplexed OutputFormat.
PathFinder Maps a relative pathname to an absolute pathname using the PATH enviroment.
PipeCombiner A generic Combiner bridge.
To use a Combiner specify -combiner myprogram in hadoopStreaming.
PipeMapper A generic Mapper bridge.
PipeMapRed Shared functionality for PipeMapper, PipeReducer.
PipeReducer A generic Reducer bridge.
StreamBaseRecordReader Shared functionality for hadoopStreaming formats.
StreamInputFormat An input format that performs globbing on DFS paths and selects a RecordReader based on a JobConf property.
StreamJob All the client-side work happens here.
StreamLineRecordReader Similar to org.apache.hadoop.mapred.TextRecordReader, but delimits key and value with a TAB.
StreamOutputFormat Similar to org.apache.hadoop.mapred.TextOutputFormat, but delimits key and value with a TAB.
StreamSequenceRecordReader  
StreamUtil Utilities not available elsewhere in Hadoop.
StreamXmlRecordReader A way to interpret XML fragments as Mapper input records.
TupleInputFormat  
UTF8ByteArrayUtils General utils for byte array containing UTF-8 encoded strings
 



Copyright © 2006 The Apache Software Foundation