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Posted to issues@flink.apache.org by "Yun Tang (Jira)" <ji...@apache.org> on 2022/04/13 02:48:00 UTC

[jira] [Assigned] (FLINK-25872) Restoring from non-changelog checkpoint with changelog state-backend enabled in CLAIM mode discards state in use

     [ https://issues.apache.org/jira/browse/FLINK-25872?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yun Tang reassigned FLINK-25872:
--------------------------------

    Assignee: Yanfei Lei

> 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.



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