What are the main components of MapReduce Job?
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Explain what combiners are and when you should use a combiner in a mapreduce job?
What is map/reduce job in hadoop?
What is difference between a MapReduce InputSplit and HDFS block
What are the key differences between Pig vs MapReduce?
When is it suggested to use a combiner in a MapReduce job?
Why is Apache Spark faster than Hadoop MapReduce?
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Explain what are the basic parameters of a mapper?
How many times combiner is called on a mapper node in Hadoop?
What is SequenceFileInputFormat?
What happens when the node running the map task fails before the map output has been sent to the reducer?
What do you understand by compute and storage nodes?
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