In which directory hadoop is installed?
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What are the main components of hadoop?
How to handle bad records during parsing?
Explain how Hadoop cluster hardware planning and provisioning is done?
What is LazyOutputFormat in Hadoop?
Mention what is data cleansing?
What is the difference between an inputsplit and a block?
Explain small file problem in hadoop
What is the difference between TextinputFormat and KeyValueTextInputFormat class?
What is Disk Balancer in Hadoop?
Suppose hadoop spawned 100 tasks for a job and one of the tasks failed. What will hadoop do?
What are the main components in Hadoop Eco-System and what are their functions ?
How many datanodes can run on a single Hadoop cluster?
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