How can you add the arbitrary key-value pairs in your mapper?
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With the help of two examples name the map and reduce function purpose
In MapReduce how to change the name of the output file from part-r-00000?
Explain the sequence of execution of all the components of MapReduce like a map, reduce, recordReader, split, combiner, partitioner, sort, shuffle.
Explain what is distributed cache in mapreduce framework?
Why is Apache Spark faster than Hadoop MapReduce?
What is the input type/format in MapReduce by default?
what are the most common input formats defined in Hadoop?
Can we submit the mapreduce job from slave node?
How to optimize MapReduce Job?
What combiners are and when you should use a combiner in a mapreduce job?
What is the need of MapReduce in Hadoop?
What is Distributed Cache in the MapReduce Framework?