What are the most common OutputFormat in Hadoop?
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Define a udf?
What is the difference between an inputsplit and a block?
Give me examples of unstructured data?
Have you ever used counters in hadoop?
Can we deploye job tracker other than name node?
What kind of hardware is best for hadoop?
Where are Hadoop’s configuration files located?
Can you explain the common input formats in hadoop?
Clarify what webdav is in hadoop?
What does the high availability of a name-node means? How is it accomplished?
When we send a data to a node, do we allow settling in time, before sending another data to that node?
What are the tools used in big data?
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