What are the important differences between apache and hadoop?

714

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Is there any point of learning mapreduce, then?

659

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While processing data from hdfs, does it execute code near data?

46

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Define the term ‘sparse vector.’

283

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Define the roles of the file system in any framework?

308

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What happens to rdd when one of the nodes on which it is distributed goes down?

435

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List commonly used machine learning algorithm?

292

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Explain the filter transformation?

314

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what do you mean by the worker node?

314

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What is rdd lineage graph? How is it useful in achieving fault tolerance?

311

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Explain about trformations and actions in the context of rdds?

312

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What is the key difference between textfile and wholetextfile method?

266

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What do you understand by the parquet file?

280

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If there is certain data that we want to use again and again in different transformations, what should improve the performance?

308

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Explain partitions?

280

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