What is a TaskInstance?
What counter in Hadoop MapReduce?
What are the various configuration parameters required to run a mapreduce job?
how Hadoop is different from other data processing tools?
Which Sorting algorithm is used in Hadoop MapReduce?
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 a RecordReader in Hadoop MapReduce?
Illustrate a simple example of the working of MapReduce.
What is a mapreduce algorithm?
What are the primary phases of a Reducer?
What is mapper in map reduce?
Explain the process of spilling in MapReduce?
In MapReduce Data Flow, when Combiner is called?