What is Data Locality in Hadoop?
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More MapReduce Interview Questions
Define speculative execution?
Difference between mapreduce and spark
How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?
Where sorting is done on mapper node or reducer node in MapReduce?
How many Reducers run for a MapReduce job in Hadoop?
Is it possible to search for files using wildcards?
Mention what is the hadoop mapreduce apis contract for a key and value class?
What are the various input and output types supported by mapreduce?
what is NameNode in Hadoop?
What are ‘maps’ and ‘reduces’?
Is it necessary to write a mapreduce job in java?
Can we set the number of reducers to zero in MapReduce?
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