Ngone51 commented on issue #25577: [WIP][CORE][SPARK-28867] InMemoryStore checkpoint to speed up replay log file in HistoryServer URL: https://github.com/apache/spark/pull/25577#issuecomment-544154021 > I think with all that in mind, I'm leaning against a change like this, it doesn't seem worth the complexity. I think I'll agree with this point. As I mentioned above, I think SPARK-28594 will do optimization for most common use cases while SPARK-28867 may only cover for several rare cases but bringing more complexity. Anyway, let's forget about SPARK-28867(snapshot in driver) before we coming up with a more viable idea. @squito @HeartSaVioR @vanzin
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