[jira] [Created] (FLINK-3405) Extend NiFiSource with interface StoppableFunction

[Shang Yuanchun (Jira)]

Matthias J. Sax created FLINK-3405:
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             Summary: Extend NiFiSource with interface StoppableFunction
                 Key: FLINK-3405
                 URL: https://issues.apache.org/jira/browse/FLINK-3405
             Project: Flink
          Issue Type: Improvement
          Components: Streaming Connectors
            Reporter: Matthias J. Sax


Nifi source is not stoppable right now. To make it stoppable, is must implement {{StoppableFunction}}. Implementing method {{stop()}} must ensure, that the source stops receiving new messages from Nifi and issues a final checkpoint. Afterwards, {{run()}} must return.

When implementing this, keep in mind, that the gathered checkpoint might later be used as a savepoint.



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