zsxwing 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-532864722 > I guess SPARK-28594 would be more preferred approach for streaming query in the end. I agree with you for provided issue, but retaining huge single event log file itself is also challenging. I think that's a separate issue since It doesn't change how long it takes to replay the logs. It will have multiple event log files but the number of events need to be replayed is not changed.
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