In a MapReduce job, the ____ determines how the output keys are sorted before they are sent to the Reducer.
- Comparator
- Partitioner
- Shuffle
- Sorter
The Comparator in MapReduce determines the order in which the output keys are sorted before they are passed to the Reducer. It plays a crucial role in arranging the intermediate key-value pairs for effective data processing in the Reducer phase.
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