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What are the different modes in which we can configure/install Hadoop?
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What is the difference between an inputsplit and a block?
What sorts of actions does the job tracker process perform?
What are the parameters of mappers and reducers?
Which are the three modes in which hadoop can be run?
What kind of hardware is best for hadoop?
Why does one remove or add nodes in a Hadoop cluster frequently?
Is Namenode machine same as DataNode machine as in terms of hardware in Hadoop?
After the Map phase finishes, the Hadoop framework does 'Partitioning, Shuffle and sort'. Explain what happens in this phase?
What happens if one hadoop client renames a file or a directory containing this file while another client is still writing into it?
Is nosql follow relational db model?
What did mean by data-node?
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?
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