Explain the sequence of execution of all the components of MapReduce like a map, reduce, recordReader, split, combiner, partitioner, sort, shuffle.
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mapper or reducer?
Is it important for Hadoop MapReduce jobs to be written in Java?
Explain the sequence of execution of all the components of MapReduce like a map, reduce, recordReader, split, combiner, partitioner, sort, shuffle.
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
How to configure the number of the Combiner in MapReduce?
Why Hadoop MapReduce?
When is it not recommended to use MapReduce paradigm for large scale data processing?
What happens when a datanode fails ?
What is the use of InputFormat in MapReduce process?
What can be optimum value for Reducer?
How to submit extra files(jars, static files) for Hadoop MapReduce job during runtime?
What is the input type/format in MapReduce by default?