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Class Summary | |
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CombinerOptimizer | Optimize map reduce plans to use the combiner where possible. |
DistinctCombiner | A special implementation of combiner used only for distinct. |
DistinctCombiner.Combine | |
JobControlCompiler | This is compiler class that takes an MROperPlan and converts it into a JobControl object with the relevant dependency info maintained. |
JobControlCompiler.PigBagWritableComparator | |
JobControlCompiler.PigCharArrayWritableComparator | |
JobControlCompiler.PigDBAWritableComparator | |
JobControlCompiler.PigDoubleWritableComparator | |
JobControlCompiler.PigFloatWritableComparator | |
JobControlCompiler.PigIntWritableComparator | |
JobControlCompiler.PigLongWritableComparator | |
JobControlCompiler.PigTupleWritableComparator | |
JobControlCompiler.PigWritableComparator | |
KeyTypeDiscoveryVisitor | A visitor to figure out the type of the key for the map plan this is needed when the key is null to create an appropriate NullableXXXWritable object |
Launcher | |
MapReduceLauncher | Main class that launches pig for Map Reduce |
MapReduceOper | An operator model for a Map Reduce job. |
MapReducePOStoreImpl | This class is used to have a POStore write to DFS via a output collector/record writer. |
MRCompiler | The compiler that compiles a given physical plan into a DAG of MapReduce operators which can then be converted into the JobControl structure. |
PhyPlanSetter | Sets the parent plan for all Physical Operators. |
PigBytesRawComparator | |
PigCombiner | |
PigCombiner.Combine | |
PigDoubleRawComparator | |
PigFloatRawComparator | |
PigHadoopLogger | A singleton class that implements the PigLogger interface for use in map reduce context. |
PigInputFormat | |
PigIntRawComparator | |
PigLongRawComparator | |
PigMapBase | |
PigMapOnly | This class is the static Mapper class used by Pig to execute Pig map only jobs. |
PigMapOnly.Map | |
PigMapReduce | This class is the static Mapper & Reducer classes that are used by Pig to execute Pig Map Reduce jobs. |
PigMapReduce.Map | |
PigMapReduce.MapWithComparator | This "specialized" map class is ONLY to be used in pig queries with order by a udf. |
PigMapReduce.MapWithPartitionIndex | Used by Skewed Join |
PigMapReduce.Reduce | |
PigMapReduce.ReduceWithComparator | This "specialized" reduce class is ONLY to be used in pig queries with order by a udf. |
PigOutputFormat | The better half of PigInputFormat which is responsible for the Store functionality. |
PigOutputFormat.PigRecordWriter | |
PigSplit | The main split class that maintains important information about the input split. |
PigTextRawComparator | |
PigTupleRawComparator | |
ProgressableReporter | |
SampleOptimizer | A visitor to optimize plans that have a sample job that immediately follows a load/store only MR job. |
SliceWrapper | Wraps a Slice in an InputSplit so it's usable by hadoop. |
UDFFinishVisitor |
Exception Summary | |
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JobCreationException | |
MRCompilerException |
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