Explain combiners.
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Which Sorting algorithm is used in Hadoop MapReduce?
Difference between mapreduce and spark
What is heartbeat in hdfs?
When is it not recommended to use MapReduce paradigm for large scale data processing?
What is a map side join?
What are advantages of Spark over MapReduce?
Explain about the basic parameters of mapper and reducer function
What is an input reader in reference to mapreduce?
Explain what are the basic parameters of a mapper?
Explain the process of spilling in MapReduce?
What are the four basic parameters of a reducer?
How does Mappers run method works?
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