What is 'jps'?
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How many InputSplits will be made by hadoop framework?
What are the differences between hadoop 1 and hadoop 2?
How can we create a hadoop cluster from scratch?
How often do you need to reformat the namenode?
What is job tracker role in hadoop?
What are the port numbers of namenode?
Name the most common input formats defined in hadoop?
What do you know about the speculative execution?
What is the command to change the replication factor ?
Do we need to place 2nd and 3rd data in rack 2 only?
Can you explain sequence file in hadoop?
Define data cleansing?
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