Define speculative execution?
What is the Job interface in MapReduce framework?
How do you stop a running job gracefully?
In Map Reduce why map write output to Local Disk instead of HDFS?
Mention what are the main configuration parameters that user need to specify to run mapreduce job?
What are the configuration parameters in the 'MapReduce' program?
What is the need of key-value pair to process the data in MapReduce?
What is the utility of using Writable Comparable Custom Class in Map Reduce code?
How to set which framework would be used to run mapreduce program?
How do Hadoop MapReduce works?
What is a RecordReader in Hadoop MapReduce?
What combiners is and when you should use a combiner in a MapReduce Job?
Describe what happens to a mapreduce job from submission to output?