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What is a mapreduce algorithm?
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How many Reducers run for a MapReduce job?
What is the difference between HDFS block and input split?
How do you stop a running job gracefully?
Is it necessary to write a mapreduce job in java?
MapReduce Types and Formats and Setting up a Hadoop Cluster?
Explain task granularity
What does a split do?
How is mapreduce related to cloud computing?
What is shuffling and sorting in mapreduce?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
What is a partitioner and how the user can control which key will go to which reducer?
How to overwrite an existing output file/dir during execution of Hadoop MapReduce jobs?
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