Explain how jobtracker schedules a task?
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Explain how jobtracker schedules a task?
What are the actions followed by hadoop?
When we send a data to a node, do we allow settling in time, before sending another data to that node?
How does hadoop achieve fault tolerance?
Mention what is rack awareness?
What is Mapper? How can we compress Mapper output in Hadoop?
What are the features of Fully-Distributed mode?
Why aggregation cannot be done in Mapper?
What is the NameNode port number?
What are 'slaves' and 'masters' in Hadoop?
How namenode handles data node failures?
Can we change the file cached by distributed cache
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