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How to set the number of mappers to be created in MapReduce?
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What is MapReduce? What are the syntax you use to run a MapReduce program?
What is InputFormat in Hadoop MapReduce?
What is OutputCommitter?
What combiners is and when you should use a combiner in a MapReduce Job?
How is mapreduce related to cloud computing?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
What is a "map" in Hadoop?
Which one will you decide for an undertaking – Hadoop MapReduce or Apache Spark?
Explain what does the conf.setMapper Class do in MapReduce?
How does Mappers run method works?
How would you tackle calculating the number of unique visitors for each hour by mining a huge apache log? You can use post processing on the output of the mapreduce job.
What is the job of blend () and repartition () in Map Reduce?
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