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What does the mapred.job.tracker command do?


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More Hadoop General Interview Questions

Explain the difference between an inputsplit and a block?

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What is distributed copy (distcp)?

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What happens if number of reducers are 0?

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Explain edge nodes in hadoop?

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List out the some common problems faced by data analyst?

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List some use cases where classification machine learning algorithms can be used.

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Ideally what should be the replication factor in hadoop?

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What is the role of the namenode?

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What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?

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What type of data hadoop can handle ?

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What are the differences between hadoop 1 and hadoop 2?

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Whats the default port that jobtrackers listens ?

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