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Large-Scale Data Engineering in Cloud

Performance Tuning, Cost Optimization / Internals, Research by Dmitry Tolpeko

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    Spark – LIMIT on Large Datasets – CollectLimit, GlobalLimit, LocalLimit, spark.sql.limit.scaleUpFactor

    September 17, 2023

    You use the LIMIT clause to quickly browse and review data samples, so you expect that such queries complete in less than a second. But let’s consider Spark’s LIMIT behaviour on very large data sets and what performance issues you may have.

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    dmtolpeko

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