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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