Is hadoop mandatory for spark?

283

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What is map in spark?

333

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Is spark written in java?

317

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How do I start a spark cluster?

302

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Does spark sql use hive?

276

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What is the default spark executor memory?

281

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What is the difference between coalesce and repartition in spark?

317

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What does rdd mean?

317

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How does groupbykey work in spark?

301

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What is tungsten in spark?

396

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What is the difference between dataframe and dataset in spark?

288

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What is an accumulator in spark?

300

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What is apache spark used for?

312

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What is the difference between spark and scala?

356

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What is accumulators and broadcast variables in spark?

328

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