What is the difference between Hadoop and RDBMS?
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What combiners are and when you should utilize a combiner in a map reduce job?
Explain what is distributed cache in mapreduce framework?
How is reporting controlled in hadoop?
What is the process of changing the split size if there is limited storage space on Commodity Hardware?
Explain InputSplit in Hadoop MapReduce?
What is the default value of map and reduce max attempts?
Which are the methods in the mapper interface?
In Hadoop what is InputSplit?
what job does the conf class do?
What happens when a datanode fails ?
Define MapReduce?
What is shuffling in mapreduce?
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