What is a distributed cache in mapreduce framework?
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How to change a number of mappers running on a slave in MapReduce?
What is the Reducer used for?
What do you understand by mapreduce?
What do you know about nlineinputformat?
Why is Apache Spark faster than Hadoop MapReduce?
How does Hadoop Classpath plays a vital role in stopping or starting in Hadoop daemons?
what are the basic parameters of a Mapper?
In mapreduce what is a scarce system resource? Explain?
when do reducers play their role in a mapreduce task?
Mention what is the next step after mapper or maptask?
Illustrate a simple example of the working of MapReduce.
What is Counter in MapReduce?