[jira] [Created] (FLINK-20081) ExecutorNotifier should run handler in the main thread when receive an exception from the callable.

[Shang Yuanchun (Jira)]

Jiangjie Qin created FLINK-20081:
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             Summary: ExecutorNotifier should run handler in the main thread when receive an exception from the callable.
                 Key: FLINK-20081
                 URL: https://issues.apache.org/jira/browse/FLINK-20081
             Project: Flink
          Issue Type: Bug
          Components: Connectors / Common
            Reporter: Jiangjie Qin


Currently the {{ExecutorNotifier}} runs the {{handler}} in the worker thread if there is an exception thrown from the {{callable}}. This breaks the threading model and prevents an exception from bubbling up to fail the job.

Another issue is that right now, when an exception bubbles up from the {{SourceCoordinator}}, the UncaughtExceptionHandler will call System.exit(-17) and kill the JM. This is too much. Instead, we should just fail the job to trigger a failover.



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