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Can we create a hadoop cluster from scratch?
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Can you explain the common input formats in hadoop?
Is Namenode machine same as DataNode machine as in terms of hardware?
Is it possible to have hadoop job output in multiple directories?
Ideally what should be the replication factor in hadoop?
Can you explain textinformat?
What is Disk Balancer in Hadoop?
Name the operating system(s) which are supported for production hadoop deployment?
What happen if one of the datanodes has much slower cpu?
What happens if the number of reducers is 0 in Hadoop?
Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
Explain the Single point of Failure in Hadoop?
How to debug Hadoop code?
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