What is the best hardware configuration to run Hadoop?
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How to change replication factor of files already stored in HDFS?
What is compute and Storage nodes?
What is a spill factor with respect to the ram?
Can NameNode and DataNode be a commodity hardware?
What problems have you faced when you are working on Hadoop code?
What do you know about keyvaluetextinputformat?
What is the difference between traditional RDBMS and Hadoop?
Name the examples of some companies that are using hadoop structure?
How indexing is done in HDFS?
Input Split & Record Reader and what they do?
What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?
How to resolve IOException: Cannot create directory
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