How to set the number of reducers?
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Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?
How many InputSplits is made by a Hadoop Framework?
What is a mapreduce algorithm?
What main configuration parameters are specified in mapreduce?
Explain the Reducer's reduce phase?
What is heartbeat in hdfs?
Explain how do ‘map’ and ‘reduce’ work?
What platform and Java version is required to run Hadoop?
What are ‘maps’ and ‘reduces’?
Can MapReduce program be written in any language other than Java?
Is it mandatory to set input and output type/format in MapReduce?
Where sorting is done on mapper node or reducer node in MapReduce?
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