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Piotr Nowojski commented on FLINK-25872: ---------------------------------------- I would still wait and see how many people would be using changelog and if indeed they complain about having to take a savepoint. I have a feeling that the set of users that falls into those two categories might be so small, especially initially, that it's not worth increasing the complexity of the system. > Restoring from non-changelog checkpoint with changelog state-backend enabled > in CLAIM mode discards state in use > ---------------------------------------------------------------------------------------------------------------- > > Key: FLINK-25872 > URL: https://issues.apache.org/jira/browse/FLINK-25872 > Project: Flink > Issue Type: Bug > Components: Runtime / Checkpointing, Runtime / State Backends > Reporter: Yun Tang > Assignee: Yanfei Lei > Priority: Major > Labels: pull-request-available > Fix For: 1.16.0 > > > If we restore from checkpoint with changelog state-backend enabled in > snapshot CLAIM mode, the restored checkpoint would be discarded on subsume. > This invalidates newer/active checkpoints because their materialized part is > discarded (for incremental wrapped checkpoints, their private state is > discarded). This bug is like FLINK-25478. > > Design doc: > [https://docs.google.com/document/d/1KSFWc0gL7HkhC-JNrnsp06TLnsTmZOTHITQDcGMo0cI/edit?usp=sharing,] -- This message was sent by Atlassian Jira (v8.20.7#820007)