Explanation:The total number of partitions is the same as the number of reduce tasks for the job. 2. Point out the correct statement :
A. The right number of reduces seems to be 0.95 or 1.75
B. Increasing the number of reduces increases the framework overhead
C. With 0.95 all of the reduces can launch immediately and start transferring map outputs as the maps finish
D. All of the mentioned
Answer:A
Explanation:The total number of partitions is the same as the number of reduce tasks for the job. 2. Point out the correct statement :
A. The right number of reduces seems to be 0.95 or 1.75 B. Increasing the number of reduces increases the framework overhead C. With 0.95 all of the reduces can launch immediately and start transferring map outputs as the maps finish D. All of the mentioned
Explanation:With 1.75 the faster nodes will finish their first round of reduces and launch a second wave of reduces doing a much better job of load balancing. 3. Which of the following partitions the key space ?