What are the configuration parameters in the 'MapReduce' program?
Explain about the partitioning, shuffle and sort phase
What is the difference between Reducer and Combiner in Hadoop MapReduce?
What are the the issues associated with the map and reduce slots based mechanism in mapReduce?
What are the data components used by Hadoop?
List out Hadoop's three configuration files?
Explain how mapreduce works.
Is there any point of learning mapreduce, then?
What is a TaskInstance?
If reducers do not start before all mappers finish then why does the progress on mapreduce job shows something like map(50%) reduce(10%)? Why reducers progress percentage is displayed when mapper is not finished yet?
What is partitioning in MapReduce?
MapReduce Types and Formats and Setting up a Hadoop Cluster?
What do you mean by shuffling and sorting in MapReduce?