Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?

684

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What is output format in hadoop?

681

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How to enable/configure the compression of map output data in hadoop?

764

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What hadoop does in safe mode?

647

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What is inputformat in hadoop?

742

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Explain how input and output data format of the hadoop framework?

710

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when hadoop enter in safe mode?

742

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How to enable recycle bin or trash in hadoop?

704

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Whats is distributed cache in hadoop?

673

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what should be the ideal replication factor in hadoop?

644

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What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?

720

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How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?

724

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How does an hadoop application look like or their basic components?

719

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What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?

663

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What is partitioning?

462

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