In a MapReduce job with 500 map tasks, how many map task attempts will there be?
A) It depends on the number of reduces in the job.
B) Between 500 and 1000.
C) At most 500.
D) At least 500.
E) Exactly 500.

Question

Quizplus · Accepted Answer

Each map task will have at least one attempt, so there will be at least 500 map task attempts. However, due to possible task failures and retries, the number of attempts can be more than 500.

In a MapReduce Job with 500 Map Tasks, How Many