Describe what happens to a mapreduce job from submission to output?
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Is Mapreduce Required For Impala? Will Impala Continue To Work As Expected If Mapreduce Is Stopped?
How to change a number of mappers running on a slave in MapReduce?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
How do Hadoop MapReduce works?
What does a split do?
How to set mappers and reducers for MapReduce jobs?
Explain combiners.
How many Mappers run for a MapReduce job?
Explain how mapreduce works.
What is InputFormat in Hadoop MapReduce?
In which kind of scenarios MapReduce jobs will be more useful than PIG in Hadoop?
What is SequenceFileInputFormat?
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