Explain how can we change the split size if our commodity hardware has less storage space?
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Explain the difference between NameNode
Explain how do ‘map’ and ‘reduce’ works?
How to change replication factor of files already stored in HDFS?
What is the difference between SQL and NoSQL?
In which location Name Node stores its Metadata and why?
What are different types of filesystem?
What is Writable & WritableComparable interface?
Define a datanode?
What is yarn in hadoop?
What is the heartbeat used for?
How is the option in Hadoop to skip the bad records?
What is the sequencefileinputformat in hadoop?
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