Answer Posted / bindu
It is data processing layer of hadoop.map and reduce are the two tasks for processing data in hadoop.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
How to set the number of mappers for a MapReduce job?
What does a split do?
What is Output Format in MapReduce?
What is the utility of using Writable Comparable Custom Class in Map Reduce code?
What is mapreduce algorithm?
Explain the general mapreduce algorithm
Developing a MapReduce Application?
What is the sequence of execution of map, reduce, recordreader, split, combiner, partitioner?
How to overwrite an existing output file/dir during execution of Hadoop MapReduce jobs?
What is Reducer in MapReduce?
What are the the issues associated with the map and reduce slots based mechanism in mapReduce?
what daemons run on a master node and slave nodes?
What is Hadoop Map Reduce ?
Name job control options specified by mapreduce.
Explain how mapreduce works.