What is the inputsplit in map reduce software?
Explain what you understand by speculative execution
What happens when a datanode fails ?
Write a short note on the disadvantages of mapreduce
How to configure the number of the Combiner in MapReduce?
how to proceed to write your first mapreducer program?
What is identity mapper and identity reducer?
How hadoop mapreduce works?
Does Partitioner run in its own JVM or shares with another process?
Explain what is the function of mapreduce partitioner?
Explain what is shuffling in mapreduce?
How to set the number of mappers to be created in MapReduce?
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?