Explanation:The shuffle and sort phases occur simultaneously; while map-outputs are being fetched they are merged. 8. Mapper and Reducer implementations can use the ________ to report progress or just indicate that they are alive.
A. Partitioner
B. OutputCollector
C. Reporter
D. All of the mentioned
Answer:A
Explanation:The shuffle and sort phases occur simultaneously; while map-outputs are being fetched they are merged. 8. Mapper and Reducer implementations can use the ________ to report progress or just indicate that they are alive.
A. Partitioner B. OutputCollector C. Reporter D. All of the mentioned