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What is Combiner in MapReduce?
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More MapReduce Interview Questions
What is Hadoop Map Reduce ?
Explain the general mapreduce algorithm
Where the mapper's intermediate data will be stored?
what happens when Hadoop spawned 50 tasks for a job and one of the task failed?
Explain what is “map” and what is "reducer" in hadoop?
Where sorting is done in Hadoop MapReduce Job?
Is YARN a replacement of Hadoop MapReduce?
Define Writable data types in MapReduce?
How to set mappers and reducers for Hadoop jobs?
What is Distributed Cache in the MapReduce Framework?
How does Hadoop Classpath plays a vital role in stopping or starting in Hadoop daemons?
Describe what happens to a mapreduce job from submission to output?
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