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Package org.apache.pig.backend.hadoop.executionengine.mapReduceLayer

Removed Classes
JobCreationException  
Launcher  
 

Added Classes
LocalExecType LocalExecType is the ExecType for local mode in Hadoop Mapreduce.
MRExecType MRExecType is the ExecType for distributed mode in Hadoop Mapreduce.
MRExecutionEngine  
MRTaskContext  
 

Changed Classes and Interfaces
FileBasedOutputSizeReader Class that computes the size of output for file-based systems.
JobControlCompiler This is compiler class that takes an MROperPlan and converts it into a JobControl object with the relevant dependency info maintained.
MRCompiler The compiler that compiles a given physical plan into a DAG of MapReduce operators which can then be converted into the JobControl structure.
MapReduceLauncher Main class that launches pig for Map Reduce
MapReducePOStoreImpl This class is used to have a POStore write to DFS via a output collector/record writer.
NativeMapReduceOper  
PhyPlanSetter Sets the parent plan for all Physical Operators.
PigHadoopLogger A singleton class that implements the PigLogger interface for use in map reduce context.
PigStatsOutputSizeReader Interface to implement when you want to customize the way of computing the size of output in PigStats.