[jira] [Created] (FLINK-1593) Improve exception handling int Streaming runtime

[Shang Yuanchun (Jira)]

Gyula Fora created FLINK-1593:
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             Summary: Improve exception handling int Streaming runtime
                 Key: FLINK-1593
                 URL: https://issues.apache.org/jira/browse/FLINK-1593
             Project: Flink
          Issue Type: Improvement
          Components: Streaming
            Reporter: Gyula Fora


The current exception handling logic is not very helpful when trying to debug an application. In many cases with serialization/user code or other exceptions, the error is just logged and not propagated properly. This should mainly be fixed in the StreamInvokables.

Some improvements that could be made:

-Serialization/Deserialiaztion and other system errors should be propagated instead of just silently logged

-User code exceptions should be better handled, for instance I think it would be helpful to log them to INFO so that users can instantly see it.



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