What is a RecordReader in Hadoop MapReduce?
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More MapReduce Interview Questions
What is the difference between map and reduce?
When is it not recommended to use MapReduce paradigm for large scale data processing?
Explain about the partitioning, shuffle and sort phase
How many Mappers run for a MapReduce job?
what is a sequence file in Hadoop?
What is the need of MapReduce in Hadoop?
When should you use sequencefileinputformat?
What is Data Locality in Hadoop?
In mapreduce what is a scarce system resource? Explain?
What are advantages of Spark over MapReduce?
How to change a number of mappers running on a slave in MapReduce?
Explain about the basic parameters of mapper and reducer function
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