What are the advantages of using map side join in mapreduce?
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what is a sequence file in Hadoop?
For a Hadoop job, how will you write a custom partitioner?
What is difference between a MapReduce InputSplit and HDFS block
Can there be no Reducer?
Clarify what is shuffling in map reduce?
Explain combiners.
How to change the name of the output file from part-r-00000 in Hadoop MapReduce?
what is the Hadoop MapReduce APIs contract for a key and value class?
what does the conf.setMapper Class do ?
Where sorting is done in Hadoop MapReduce Job?
What is a Speculative Execution in Hadoop MapReduce?
Explain the input type/format in mapreduce by default?
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