Is it necessary to write a mapreduce job in java?
How many Reducers run for a MapReduce job?
Is it necessary to write a mapreduce job in java?
What is the utility of using Writable Comparable Custom Class in Map Reduce code?
Define the Use of MapReduce?
How to specify more than one directory as input in the Hadoop MapReduce Program?
Clarify what is shuffling in map reduce?
What is sqoop in Hadoop ?
What do you mean by inputformat?
Whether the output of mapper or output of partitioner written on local disk?
What is the input type/format in MapReduce by default?
What is shuffling in mapreduce?
How hadoop mapreduce works?