When is it not recommended to use MapReduce paradigm for large scale data processing?
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Mention Hadoop core components?
What is the input type/format in MapReduce by default?
Is it important for Hadoop MapReduce jobs to be written in Java?
What platform and Java version is required to run Hadoop?
Explain the process of spilling in Hadoop MapReduce?
what are the three modes in which Hadoop can be run?
what is Speculative Execution?
What is identity mapper and reducer? In which cases can we use them?
What is an input reader in reference to mapreduce?
Different ways of debugging a job in MapReduce?
what is NameNode in Hadoop?
What is the key- value pair in Hadoop MapReduce?
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