Package mapred

Provides classes needed for MapReduce jobs.

See:
          Description

Class Summary
BigIntegerWritable Provides an immutable implementation of a big integer for use in Hadoop framework.
Count EPiC MapReduce main class.
CustomRecordReader Provides an implementation of a common record reader for all MapReduce jobs in the distributed application.
MapRedEpic Implementation of EPiC's approach.
MapRedEpicReducerEvaluate Implementation of EPiC's approach with a slight difference.
MapRedNotSendCoeff This is an older implementation of EPiC.
MapRedPlainCountAll This is similar to MapRedPlainCountOne, but supports counting many values at once.
MapRedPlainCountOne This is an illustrating implementation of counting based on unencrypted fields.
Producer This is a MapReduce job used for generating a large data of set and storing in the HDFS.
RecordInputFormat Provides customized input format for MapReduce counting jobs.
 

Package mapred Description

Provides classes needed for MapReduce jobs.

The main executable class is Count, which receives command-line parameters and executes the MapReduce counting job.

Different counting approaches are implemented in classes prefixed with MapRed.

The Producer class is an implementation of a MapReduce job used to generate a large data set in parallel to reduce the generating time.