SandishKumarHN commented on issue #23401: [SPARK-26513][Core] : Trigger GC on executor node idle URL: https://github.com/apache/spark/pull/23401#issuecomment-450694795 @srowen we have 1TB data persisted on the cache and 100 GB data gets cached and unpersisted every 15 minutes. we found that GC was not happening frequently as data gets unpersists at 15 minutes interval which use to affect our further caching mechanism. right now I don't have numbers for spark vs "spark with idelGC". if needed I could get benchmarking result for PageRank or something else.
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