[jira] [Updated] (FLINK-16443) Fix wrong fix for user-code CheckpointExceptions

["Yun Tang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-16443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yun Tang updated FLINK-16443:
-----------------------------
    Fix Version/s: 1.12.2

> Fix wrong fix for user-code CheckpointExceptions
> ------------------------------------------------
>
>                 Key: FLINK-16443
>                 URL: https://issues.apache.org/jira/browse/FLINK-16443
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Checkpointing
>            Reporter: Stephan Ewen
>            Assignee: Arvid Heise
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.13.0, 1.12.2
>
>
> The problem of having exceptions that are only in the user code classloader was fixed by proactively serializing them inside the {{CheckpointException}}. That means all consumers of  {{CheckpointException}} now need to be aware of that and unwrap the serializable exception.
> I believe the right way to fix this would have been to use a SerializedException in the {{DeclineCheckpoint}} message instead, which would have localized the change to the actual problem: RPC transport.
> I would suggest to revert https://github.com/apache/flink/pull/9742 and instead apply the above described change.



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