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How is Spark not quite the same as MapReduce? Is Spark quicker than MapReduce?
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What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
Can we set the number of reducers to zero in MapReduce?
Name job control options specified by mapreduce.
how to proceed to write your first mapreducer program?
In MapReduce Data Flow, when Combiner is called?
What is heartbeat in hdfs? Explain.
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 difference between an input split and hdfs block?
What are the advantages of using mapreduce with hadoop?
What is a RecordReader in Hadoop MapReduce?
Explain the process of spilling in Hadoop MapReduce?
How to optimize MapReduce Job?
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