What jobtracker is in hadoop? What are the activities followed by hadoop?
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What are the four basic parameters of a mapper?
Is Namenode machine same as DataNode machine as in terms of hardware?
What is a Backup node in Hadoop?
Explain map-only job?
Can you explain commodity hardware?
Explain about Hadoop file system and processing framework?
What is difference between secondary namenode, checkpoint namenode & backupnode?
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What is a combiner in hadoop?
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