Explain a simple Map/Reduce problem.
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Can the balancer be run while Hadoop is in use?
How many JVMs run on a slave node?
What is InputSplit and RecordReader?
What is commodity hardware?
What are the steps to submit a Hadoop job?
Explain what happens in textinformat ?
What are the additional benefits YARN brings in to Hadoop?
What problems have you faced when you are working on Hadoop code?
How will you make changes to the default configuration files?
Explain the basic difference between traditional rdbms and hadoop?
What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?
What is hadoop framework?
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