When is it better to use SparkCore (i.e. sparkContext entry point), and when is it better to use Spark dataframe or sparkSql?

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denislysenko2022-01-03 00:07:47

Apache Spark

denislysenko, 2022-01-03 00:07:47

When is it better to use SparkCore (i.e. sparkContext entry point), and when is it better to use Spark dataframe or sparkSql?

Hello, the essence of my question is that I want to understand in what situations and why is it better to use SparkCore instead of Spark dataframe or sparkSql?
That is, what advantages do these 3 technologies have over each other, and which one works faster?

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