In Hadoop what is InputSplit?
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Write a short note on the disadvantages of mapreduce
What is shuffling and sorting in Hadoop MapReduce?
Explain the sequence of execution of all the components of MapReduce like a map, reduce, recordReader, split, combiner, partitioner, sort, shuffle.
What is a "reducer" in Hadoop?
Explain what does the conf.setmapper class do?
How to sort intermediate output based on values in MapReduce?
MapReduce Types and Formats and Setting up a Hadoop Cluster?
What is the purpose of textinputformat?
How do ‘map’ and ‘reduce’ work?
Why the output of map tasks are stored (spilled ) into local disc and not in hdfs?
Why do we need MapReduce during Pig programming?
What are advantages of Spark over MapReduce?
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