What are the default configuration files that are used in hadoop?
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What are the network requirements for using hadoop?
what are the nodes in the Hadoop cluster?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
Define a task tracker?
What is Input Split in hadoop?
Explain the shuffle?
What problems have you faced when you are working on Hadoop code?
Is hadoop the future?
Explain the use of tasktracker in the hadoop cluster?
What is Row Key?
What is HDFS Block size? How is it different from traditional file system block size?
How to resolve IOException: Cannot create directory
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