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What is an input reader in reference to mapreduce?
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More MapReduce Interview Questions
Is it mandatory to set input and output type/format in MapReduce?
What platform and Java version is required to run Hadoop?
Illustrate a simple example of the working of MapReduce.
What is a "map" in Hadoop?
how indexing in HDFS is done?
How is Spark not quite the same as MapReduce? Is Spark quicker than MapReduce?
What is a map side join?
With the help of two examples name the map and reduce function purpose
How to set mappers and reducers for MapReduce jobs?
Explain the difference between a MapReduce InputSplit and HDFS block?
What is a combiner and where you should use it?
Mention Hadoop core components?
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