Which process describes the lifecycle of a Mapper?
A. The JobTracker calls the TaskTracker’s configure () method, then its map () method and finally its close () method.
B. The TaskTracker spawns a new Mapper to process all records in a single input split.
C. The TaskTracker spawns a new Mapper to process each key-value pair.
D. The JobTracker spawns a new Mapper to process all records in a single file.
Answer:C
Which process describes the lifecycle of a Mapper?
A. The JobTracker calls the TaskTracker’s configure () method, then its map () method and finally its close () method. B. The TaskTracker spawns a new Mapper to process all records in a single input split. C. The TaskTracker spawns a new Mapper to process each key-value pair. D. The JobTracker spawns a new Mapper to process all records in a single file.