What do shuffling do?

683

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Explain the basic difference between traditional rdbms and hadoop?

660

---

Explain what if rack 2 and datanode fails?

649

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Define a job tracker?

710

---

Explain the features of fully distributed mode?

632

---

What are the characteristics of hadoop framework?

675

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Explain how can we change the split size if our commodity hardware has less storage space?

658

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Explain how is hadoop different from other data processing tools?

735

---

Define a datanode?

656

---

Is secondary namenode a substitute to the namenode?

692

---

What is a secondary namenode?

634

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What is unstructured data?

671

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Explain the overview of hadoop history breifly?

632

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How does yarn work with spark?

291

---

What happens when we submit a spark job?

314

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