Explain what is sequencefileinputformat?

490

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Mention how hadoop is different from other data processing tools?

446

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Mention what are the most common input formats defined in hadoop?

479

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Mention what is rack awareness?

422

---

Mention what is the difference between an rdbms and hadoop?

467

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Mention what are the three modes in which hadoop can be run?

459

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Explain how does hadoop classpath plays a vital role in stopping or starting in hadoop daemons?

652

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Explain what is storage and compute nodes?

543

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Explain how jobtracker schedules a task?

509

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Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?

475

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What happens in text format?

484

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Explain how is data partitioned before it is sent to the reducer if no custom partitioner is defined in hadoop?

477

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Explain what is a task tracker in hadoop?

500

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Explain what is speculative execution?

458

---

Explain what happens in text format?

611

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