What happens when a datanode fails ?
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Where sorting is done on mapper node or reducer node in MapReduce?
When is it not recommended to use MapReduce paradigm for large scale data processing?
What is Hadoop Map Reduce ?
What are the benefits of Spark over MapReduce?
What are the various InputFormats in Hadoop?
Different ways of debugging a job in MapReduce?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
What is the problem with the small file in Hadoop?
In which kind of scenarios MapReduce jobs will be more useful than PIG in Hadoop?
What is the process of changing the split size if there is limited storage space on Commodity Hardware?
MapReduce Types and Formats and Setting up a Hadoop Cluster?
Write a Mapreduce Program for Character Count ?
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