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Explain how jobtracker schedules a task?
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What are the hadoop configuration files at present?
Ideally what should be replication factor in a Hadoop cluster?
How to handle bad records during parsing?
Clarify what a task tracker is in hadoop?
What is Small File Problem in Hadoop? How can it be resolved?
Mention what job does the conf class do?
How to debug Hadoop code?
What is streaming in Hadoop?
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?
How can one write custom record reader?
Mention what is the data storage component used by hadoop?
What are the features of Standalone (local) mode?
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