Explain about Hadoop file system and processing framework?
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Where are hadoop’s configuration files located and list them?
Can we write map reduce program in other than java programming language. How?
How to specify more than one path for storage in Hadoop?
How many daemon processes run on a hadoop cluster?
What is difference between reducer and combiner?
What is the difference between TextInputFormat and KeyValueInputFormat class?
How would you check whether your NameNode is working or not?
What does the high availability of a name-node means?
Explain how does hadoop classpath plays a vital role in stopping or starting in hadoop daemons?
How many InputSplits will be made by hadoop framework?
Compare Hadoop 2 and Hadoop 3?
Can we create a hadoop cluster from scratch?
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