Explanation:Admins can also specify the maximum virtual memory of the launched child-task, and any sub-process it launches recursively, using mapred. 9. Which of the following parameter is the threshold for the accounting and serialization buffers ?
A. io.sort.spill.percent
B. io.sort.record.percent
C. io.sort.mb
D. None of the mentioned
Answer:A
Explanation:Admins can also specify the maximum virtual memory of the launched child-task, and any sub-process it launches recursively, using mapred. 9. Which of the following parameter is the threshold for the accounting and serialization buffers ?
A. io.sort.spill.percent B. io.sort.record.percent C. io.sort.mb D. None of the mentioned
Explanation:When percentage of either buffer has filled, their contents will be spilled to disk in the background. 10. ______________ is percentage of memory relative to the maximum heapsize in which map outputs may be retained during the reduce.