Github user StephanEwen commented on the pull request: https://github.com/apache/flink/pull/1048#issuecomment-135746761 Okay, one change I would like to do during merging is to not deserialize exceptions on the JobManager. I would extend the SerializedThrowable to include the original message and original stack trace so that it can be printed / logged just like the original exception. Exceptions in the execution graph would always be serialized exceptions always as well.
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