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What is the logistic regression?
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what happens when namenode goes down during file read operation in hadoop?
Is it possible to rename the output file, and if so, how?
Explain what is speculative execution?
Can you explain rack awareness?
Hadoop achieves parallelism by dividing the tasks across many nodes, it is possible for a few slow nodes to rate-limit the rest of the program and slow down the program. What mechanism Hadoop provides to combat this?
Mention how hadoop is different from other data processing tools?
What are the functionalities of jobtracer?
What are the features of Standalone (local) mode?
What are the port numbers of job tracker?
What a task tracker is in hadoop?
What do you know about the speculative execution?
What are the differences between hadoop 1 and hadoop 2?
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