jaceklaskowski
Mastering Apache Spark 2 (Spark 2.2+)

Updated 2 months ago

pavel-lysyanskyi (@pavel-lysyanskyi) started discussion #99

a year ago · 0 comments

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The difference between cache and persist operations is purely syntactic. cache is a synonym of persist or persist(MEMORY_ONLY), i.e. cache is merely persist with the default storage level MEMORY_ONLY.

Caching and Persistence (Edit this file)

as of Spark 2.0.1 the default storage level for persist is MEMORY_ONLY_SER , same applied to the cache()

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