What is the job tracker role in hadoop?
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What is Identity reducer?
What is throughput in Hadoop?
What happens if you get a ‘connection refused java exception’ when you type hadoop fsck /?
How would an hadoop administrator deploy various components of hadoop in production?
What happens in text format?
Can you define a checkpoint?
What is the difference between TextinputFormat and KeyValueTextInputFormat class?
What are the port numbers of namenode?
Which directory does hadoop install to?
How namenode handles data node failures?
What is check pointing in hadoop?
What mode(s) can hadoop code be run in?
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