What does /etc /init.d do?
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Define a datanode?
Input Split & Record Reader and what they do?
what are the nodes in the Hadoop cluster?
What is a task instance in hadoop? Where does it run?
What do sorting do?
Whats is distributed cache in hadoop?
How would you use Map/Reduce to split a very large graph into smaller pieces and parallelize the computation of edges according to the fast/dynamic change of data?
Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?
What is MapFile?
Define a commodity hardware? Does commodity hardware include ram?
What is the InputFormat ?
Explain the basic architecture of Hadoop?
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