What is streaming in Hadoop?
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What is the problem with small files in Hadoop?
What mode(s) can hadoop code be run in?
Who are ‘Data Scientists’?
What is a record reader?
What are the core components of Hadoop?
Are there any special requirements for namenode?
How many job tracker processes can run on a single Hadoop cluster?
What is Combiner in Hadoop?
What is a udf?
Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
Is nosql follow relational db model?
What is heartbeat in hadoop?
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