Are job tracker and task trackers present in separate machines?
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After the Map phase finishes, the Hadoop framework does 'Partitioning, Shuffle and sort'. Explain what happens in this phase?
Compare Hadoop and RDBMS?
Have you ever used counters in hadoop?
What is the use of context object?
Can you explain bloommapfile.
What are the most common InputFormats in Hadoop?
How Hadoop is cost-effective?
Explain what is storage and compute nodes?
What are the port numbers of namenode?
What is Rack Awareness? What is its need in Hadoop?
Mention how many inputsplits is made by a hadoop framework?
What does block mean?
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