Package org.apache.hadoop.mapreduce

Changed Classes and Interfaces
Counter	A named counter that tracks the progress of a map/reduce job.
Job	The job submitter's view of the Job.
JobContext	A read-only view of the job that is provided to the tasks while they are running.
MapContext	The context that is given to the Mapper
OutputCommitter	OutputCommitter describes the commit of task output for a Map-Reduce job.
ReduceContext	The context passed to the Reducer
TaskAttemptContext	The context for task attempts.
TaskID	TaskID represents the immutable and unique identifier for a Map or Reduce Task.
TaskInputOutputContext	A context object that allows input and output from the task.