When is it suggested to use a combiner in a MapReduce job?
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How to submit extra files(jars, static files) for Hadoop MapReduce job during runtime?
Name job control options specified by mapreduce.
What is SequenceFileInputFormat in Hadoop MapReduce?
How to set the number of mappers for a MapReduce job?
Where sorting is done on mapper node or reducer node in MapReduce?
How do you stop a running job gracefully?
What is the key- value pair in MapReduce?
what is WebDAV in Hadoop?
Explain how do ‘map’ and ‘reduce’ work?
How to specify more than one directory as input to the MapReduce Job?
What are the primary phases of a Reducer?
How does fault tolerance work in mapreduce?
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