[jira] [Created] (FLINK-14653) Job-related errors in snapshotState do not result in job failure

["Maximilian Michels (Jira)" <ji...@apache.org>]

Maximilian Michels created FLINK-14653:
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             Summary: Job-related errors in snapshotState do not result in job failure
                 Key: FLINK-14653
                 URL: https://issues.apache.org/jira/browse/FLINK-14653
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Checkpointing
            Reporter: Maximilian Michels


When users override {{snapshoteState}}, they might include logic there which is crucial for the correctness of their application, e.g. finalizing a transaction and buffering the results of that transaction, or flushing events to an external store. Exceptions occurring should lead to failing the job.

Currently, users must make sure to throw a {{Throwable}} because any {{Exception}} will be caught by the task and reported as checkpointing error, when it could be an application error.

It would be helpful to update the documentation and introduce a special exception that can be thrown for job-related failures, e.g. {{ApplicationError}} or similar.



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