vanzin commented on issue #24499: [SPARK-27677][Core] Serve local disk persisted blocks by the external service after releasing executor by dynamic allocation URL: https://github.com/apache/spark/pull/24499#issuecomment-492330721 If it's not a lot of work, a config option to enable the new behavior would be good. To be frank I only think it affects standalone, since it's the only backend that has the file cleaner hooked up. So if you are working on a solution to the file cleaning problem, then even that could be avoided (we can live with the issue temporarily). The cleaning problem, though, is a little trickier, because you'll have to involve the shuffle service in the cleaning process of shuffles and RDDs. That's probably a good thing in any case, and is something that is being added to the API being worked on in SPARK-25299.
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