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Explain the usage of Context Object?


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More Hadoop General Interview Questions

If datanodes increase, then do we need to upgrade namenode?

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Can you define a checkpoint?

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What is the number of default partitioner in hadoop?

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Web-ui shows that half of the datanodes are in decommissioning mode. What does that mean? Is it safe to remove those nodes from the network?

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What is Slot in Hadoop v1? Why was it removed from Hadoop v2?

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How does job tracker schedule a job for the task tracker?

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How Hadoop is cost-effective?

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Can you explain bloommapfile.

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How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?

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What kind of hardware is best for hadoop?

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