What are the types of PySpark’s shared variables and why are they useful?

What are the types of PySpark’s shared variables and why are they useful?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: easy

标签: interviewbit, pyspark, topic-specific, spark, data-engineering

参考答案摘要

Whenever PySpark performs the transformation operation using filter(), map() or reduce(), they are run on a remote node that uses the variables shipped with tasks. These variables are not reusable and...

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