[jira] [Created] (FLINK-2067) Chained streaming operators should not throw chained exceptions

[Shang Yuanchun (Jira)]

Stephan Ewen created FLINK-2067:
-----------------------------------

             Summary: Chained streaming operators should not throw chained exceptions
                 Key: FLINK-2067
                 URL: https://issues.apache.org/jira/browse/FLINK-2067
             Project: Flink
          Issue Type: Bug
          Components: Streaming
            Reporter: Stephan Ewen


The exceptions that come from chained operators have an non-intuitive chaining structure, that makes the stack traces harder to understand.

For every chained task, there is a "Failed to forward record" exception, before the actual exception comes as a cause.

In the Batch API, we use a special "ExceptionInChainedStubException" that is recognized and un-nested to make chained operator exceptions surface as root exceptions.

We should do the same for the streaming API.





--
This message was sent by Atlassian JIRA
(v6.3.4#6332)