When using MapReduce,best practices suggest that the number of mappers on a given node should be ______.
A) 50 or less
B) over 100 but less than 300
C) 100 or less
D) at least 300

Question

Quizplus · Accepted Answer

Best practices suggest that the number of mappers on a given node should be 100 or less. This is because having too many mappers can lead to performance issues due to increased use of resources such as memory and CPU. It is recommended to have a balance between the number of mappers and available resources on the node to ensure optimal performance.

When Using MapReduce,best Practices Suggest That the Number of Mappers