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How to create a user in Hadoop?
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Define “speculative execution” in hadoop?
Can hadoop handle streaming data?
What do you understand by standalone (or local) mode?
How can you set an arbitrary number of mappers to be created for a job in Hadoop?
Explain how is data partitioned before it is sent to the reducer if no custom partitioner is defined in hadoop?
Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
What are the restriction to the key and value class ?
What is streaming access?
Can you give some examples of Big Data?
What is the NameNode port number?
Have you ever used counters in hadoop?
Can we deploye job tracker other than name node?
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