Why is hadoop faster?
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Does this lead to security issues?
How will you make changes to the default configuration files?
Is fs.mapr.working.dir a single directory?
Define fault tolerance?
What is the heartbeat used for?
Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
What is the relation between job and task in hadoop?
how would you modify that solution to only count the number of unique words in all the documents?
What is a heartbeat in HDFS?
What is Row Key?
Explain what happens in textinformat ?
Who is a 'user' in HDFS?
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