What are the core methods of a Reducer?
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What is the logistic regression?
what if job tracker machine is down?
Doesn’t google have its very own version of dfs?
What is the default replication factor in Hadoop and how will you change it?
Is Namenode machine same as DataNode machine as in terms of hardware?
Explain some important features of hadoop?
What are the functionalities of jobtracer?
What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?
What do you understand by unit and ()in scala?
When and how to create hadoop archive?
What is job tracker role in hadoop?
What is the characteristic of streaming API that makes it flexible run MapReduce jobs in languages like Perl, Ruby, Awk etc.?
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