Card 13 / 19: 3. [8 points]: Ben Bitdiddle is using a MapReduce cluster (as described in reading #8) to process some data. He finds that some of his programs are running slowly and needs your help to understand which performance enhancements to try. For each of the following MapReduce configurations and suggested enhancements, circle True if the statement about the enhancement is true, and False otherwise.Suppose local disk reads and writes are 100 times as fast as network transfers and the coordinator is never able to achieve locality by assigning map workers to map input tasks stored on their local disks. In that case, if the system has an I/O bottleneck, then doubling network throughput will substantially improve performance.
A) True
B) False

Keyboard Shortcuts