HeartSaVioR 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-532431885 I forgot to say - I can see the major benefits from taking snapshot from driver, so if you can prove it doesn't bring considerable latency in listener side and no memory pressure, it would be better approach.
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