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https://issues.apache.org/jira/browse/FLINK-26985?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17515852#comment-17515852
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Yun Tang commented on FLINK-26985:
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I think this error is caused by the refactoring introduced in FLINK-24611,
[~roman] would you please take a look?
> With legacy restore mode, incremantal checkpoints would be deleted by mistake
> -----------------------------------------------------------------------------
>
> Key: FLINK-26985
> URL: https://issues.apache.org/jira/browse/FLINK-26985
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Checkpointing
> Affects Versions: 1.15.0
> Reporter: Yun Tang
> Priority: Blocker
>
> Before flink-1.15, the restored checkpoint would be regsiterd and not discard
> on subsume, which means the restored incremental checkpoint would have one
> more reference counting to avoid discard.
> However, after state registry refactored, we could delete artificats in the
> restored incremental checkpoint with legacy restore mode.
> The error could be reproduced via
> {{ResumeCheckpointManuallyITCase#testExternalizedIncrementalRocksDBCheckpointsStandalone}}
> in my [local branch|https://github.com/Myasuka/flink/tree/legacy-error].
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