Explain the differences between a combiner and reducer
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what happens when Hadoop spawned 50 tasks for a job and one of the task failed?
What is Text Input Format?
What are ‘reduces’?
How many Mappers run for a MapReduce job in Hadoop?
What is Shuffling and Sorting in a MapReduce?
Developing a MapReduce Application?
Explain the process of spilling in Hadoop MapReduce?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
What do you mean by data locality?
What is a scarce system resource?
When is it not recommended to use MapReduce paradigm for large scale data processing?
Why is Apache Spark faster than Hadoop MapReduce?