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What are the tools used in big data?
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What are the functionalities of jobtracer?
How do you overwrite replication factor?
Explain edge nodes in hadoop?
Can you give a detailed overview about the Big Data being generated by Facebook?
How to do ‘map’ and ‘reduce’ works?
What do you mean by the NameNode High Availability in hadoop?
Is it possible to provide multiple input to Hadoop? If yes then how can you give multiple directories as input to the Hadoop job?
What do you understand by standalone (or local) mode?
After increasing the replication level, I still see that data is under replicated. What could be wrong?
What are the most common InputFormats in Hadoop?
Ideally what should be the replication factor in hadoop?
Define a record reader?
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