Is it important for Hadoop MapReduce jobs to be written in Java?
What is identity mapper and identity reducer?
What is the use of InputFormat in MapReduce process?
How is Spark not quite the same as MapReduce? Is Spark quicker than MapReduce?
What are combiners? When should I use a combiner in my MapReduce Job?
Mention when to use Map reduce mode?
What is the difference between Job and Task in MapReduce?
What is the default value of map and reduce max attempts?
Is YARN a replacement of Hadoop MapReduce?
Explain the sequence of execution of all the components of MapReduce like a map, reduce, recordReader, split, combiner, partitioner, sort, shuffle.
Clarify what is shuffling in map reduce?
What is an input reader in reference to mapreduce?
How to change the name of the output file from part-r-00000 in Hadoop MapReduce?