Explain the Reducer's reduce phase?
What is the sequence of execution of map, reduce, recordreader, split, combiner, partitioner?
What is a map side join?
What main configuration parameters are specified in mapreduce?
How to sort intermediate output based on values in MapReduce?
What is an input reader in reference to mapreduce?
What is Reducer in MapReduce?
when do reducers play their role in a mapreduce task?
What comes in Hadoop 2.0 and MapReduce V2 YARN
What is MapReduce in Hadoop?
How hadoop mapreduce works?
What is shuffling and sorting in Hadoop MapReduce?
How to change the name of the output file from part-r-00000 in Hadoop MapReduce?