Explain job scheduling through JobTracker
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How to set mappers and reducers for Hadoop jobs?
Why is Apache Spark faster than Hadoop MapReduce?
Explain the general mapreduce algorithm
Explain what is “map” and what is "reducer" in hadoop?
What do sorting and shuffling do?
How many Mappers run for a MapReduce job in Hadoop?
What combiners are and when you should utilize a combiner in a map reduce job?
What is a "reducer" in Hadoop?
What is KeyValueTextInputFormat in Hadoop MapReduce?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
what daemons run on a master node and slave nodes?
In which kind of scenarios MapReduce jobs will be more useful than PIG in Hadoop?
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