Explain the use of .mecia class?
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Which data storage components are used by hadoop?
Explain the use of .mecia class?
What does job conf class do?
In which location Name Node stores its Metadata and why?
how would you modify that solution to only count the number of unique words in all the documents?
Define a task tracker?
What are combiners and its purpose?
Explain how do ‘map’ and ‘reduce’ works?
Name some companies that use Hadoop?
What is the difference between SQL and NoSQL?
How many maximum jvm can run on a slave node?
What is InputSplit and RecordReader?
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