How to create hadoop archive?

391

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When should be hadoop archive create?

398

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What mode(s) can hadoop code be run in?

425

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How often do you need to reformat the namenode?

486

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What is the role of the namenode?

400

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What happen on the namenode when a client tries to read a data file?

434

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What is replication factor?

408

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If the hadoop administrator needs to make a change, which configuration file does he need to change?

410

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What is distributed copy (distcp)?

446

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What is the role of the secondary namenode?

416

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Are there any special requirements for namenode?

403

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is there a standard procedure to deploy hadoop?

397

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What happen if a datanode loses network connection for a few minutes?

560

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What is the procedure for namenode recovery?

408

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How would an hadoop administrator deploy various components of hadoop in production?

398

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