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Explain how can we check whether namenode is working or not?


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More Hadoop General Interview Questions

What is check pointing in hadoop?

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What are the four basic parameters of a mapper?

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What is the logistic regression?

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What is CAP Theorem? What aspects does Hadoop support from this theorem?

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How many maps are there in a particular job?

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Explain Data Locality in Hadoop?

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What is Balancer in Hadoop?

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Which are the three modes in which hadoop can be run?

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What is the hadoop-core configuration?

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Hadoop achieves parallelism by dividing the tasks across many nodes, it is possible for a few slow nodes to rate-limit the rest of the program and slow down the program. What mechanism Hadoop provides to combat this?

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What is pseudo-distributed mode?

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What are the different modes in which we can configure/install Hadoop?

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