What do you mean by shuffling and sorting in MapReduce?
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Clarify what combiners are and when you should utilize a combiner in a map reduce job?
How to set which framework would be used to run mapreduce program?
Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?
What is the fundamental difference between a MapReduce InputSplit and HDFS block?
What is the difference between Reducer and Combiner in Hadoop MapReduce?
Explain how do ‘map’ and ‘reduce’ work?
Write a short note on the disadvantages of mapreduce
How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?
What is the input type/format in MapReduce by default?
What are combiners? When should I use a combiner in my MapReduce Job?
What is the purpose of textinputformat?
Explain task granularity
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