What are the side effects of not running a secondary name node?

456

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What are the main components of hadoop?

437

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What do you understand by unit and ()in scala?

505

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Can you define udf?

436

---

What is the difference between an inputsplit and a block?

636

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What is the purpose of context object?

435

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Can you explain sequence file in hadoop?

414

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What is the use of recordreader in hadoop?

426

---

What is data cleansing?

459

---

What is the number of default partitioner in hadoop?

446

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Can you explain hadoop streaming?

424

---

List out some common problems faced by data analyst?

461

---

What is job tracker role in hadoop?

488

---

What do you understand by a closure in scala?

493

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Can you explain textinformat?

503

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