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Define speculative execution?
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How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
how to proceed to write your first mapreducer program?
Illustrate a simple example of the working of MapReduce.
What is the use of InputFormat in MapReduce process?
Differentiate Reducer and Combiner in Hadoop MapReduce?
What is identity mapper and reducer? In which cases can we use them?
What is the best way to copy files between HDFS clusters?
How many Mappers run for a MapReduce job in Hadoop?
What are the advantages of using map side join in mapreduce?
How is reporting controlled in hadoop?
What are the main components of MapReduce Job?
In MapReduce, ideally how many mappers should be configured on a slave?
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