What type of data we should put in distributed cache? When to put the data in dc? How much volume we should put in?
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Can you explain speculative execution?
Clarify what is sequence file input format?
What happen if one of the datanodes has much slower cpu?
Name the most common input formats defined in hadoop?
What is Reducer in Hadoop?
Explain the core methods of the reducer?
Whats the default port that jobtrackers listens ?
Can you explain hadoop streaming?
Explain how can we check whether namenode is working or not?
Can we write map reduce program in other than java programming language. How?
What are the major differences between Hadoop 2 and Hadoop 3?
Compare Hadoop and RDBMS?
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