Github user HeartSaVioR commented on the pull request:
https://github.com/apache/storm/pull/218#issuecomment-61017158
Is there a relation between parent process's exception and subprocess's
stderr?
If it's not, and we should capture it from parent, I think spout may have
stderr reader with new thread.
Because it may not be right way to capture it when only parent process
raises exception.
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