Vidyalelo
Hadoop · Q28

Best Practices and Optimization of Hadoop

Programming · Hadoop · question 28

Q28

How can speculative execution be controlled at the job level in Hadoop?

A.
Set "mapred.map.tasks.speculative.execution" to true
B.
Set "mapred.reduce.tasks.speculative.execution" to true
C.
Use the "mapred.speculative.execution" configuration
Answer
D.
Speculative execution cannot be controlled

Answer: Option C

Solution

Answer: Option C
No explanation is given for this question Let's Discuss on Board