| Name | Type | Package | Detail |
| LocalMapReduceSimulator | Class | pig.pen | Detail |
| MapReduceLauncher | Class | executionengine.mapReduceLayer | Detail |
| MapReduceOper | Class | executionengine.mapReduceLayer | Detail |
| MapReducePOStoreImpl | Class | executionengine.mapReduceLayer | Detail |
| NativeMapReduceOper | Class | executionengine.mapReduceLayer | Detail |
| PigGenericMapReduce | Class | executionengine.mapReduceLayer | Detail |
| PigMapReduceCounter | Class | executionengine.mapReduceLayer | Detail |
