[jira] [Created] (FLINK-19338) New source interface cannot unregister unregistered source

[Shang Yuanchun (Jira)]

Arvid Heise created FLINK-19338:
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             Summary: New source interface cannot unregister unregistered source
                 Key: FLINK-19338
                 URL: https://issues.apache.org/jira/browse/FLINK-19338
             Project: Flink
          Issue Type: Bug
    Affects Versions: 1.11.2, 1.12.0
            Reporter: Arvid Heise
            Assignee: Arvid Heise


When a source subtask fails before the respective reader is registered in {{SourceCoordinatorContext}}, unregistering fails as it explicitly verifies that the reader has been registered before.

The solution is to drop the assumption that all readers are registered when cleaning up subtasks.



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