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A decision‑by‑decision guide for picking Spark’s shuffle partition count, with a size‑based formula, a fixed‑high‑value skew option, and Adaptive Query Execution, plus steps to validate the choice using the Spark UI.
tf.data pagination with .skip()/.take() Goal: Retrieve a fixed window from a large dataset for training or inference, e.g., page 3 of size 100 via .skip(200).take(100). This approach is documented in the tf.data API. Unresolved behavior When a shuffle operation precedes the pagination steps, the resulting page contains a random sample of the original data. I
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