Can you explain textinformat?
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How to create hadoop archive?
What do you think about the speculative execution?
What is a record reader?
Explain the core methods of the reducer?
What is Fault Tolerance?
What does the high availability of a name-node means? How is it accomplished?
What is Distributed Cache in Hadoop?
Define a udf?
What is 'jps'?
Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
Can we write map reduce program in other than java programming language. How?
What happens if one hadoop client renames a file or a directory containing this file while another client is still writing into it?
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