[jira] [Created] (FLINK-5440) Misleading error message when migrating and scaling down from savepoint

[Shang Yuanchun (Jira)]

Ufuk Celebi created FLINK-5440:
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             Summary: Misleading error message when migrating and scaling down from savepoint
                 Key: FLINK-5440
                 URL: https://issues.apache.org/jira/browse/FLINK-5440
             Project: Flink
          Issue Type: Improvement
          Components: State Backends, Checkpointing
            Reporter: Ufuk Celebi
            Priority: Minor


When resuming from an 1.1 savepoint with 1.2 and reducing the parallelism (and correctly setting the max parallelism), the error message says something about a missing operator which is misleading. Restoring from the same savepoint with the savepoint parallelism works as expected.

Instead it should state that this kind of operation is not possible.



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