huijunwu opened a new pull request #2905: log the object when it cannot be serialized when emitting tuples URL: https://github.com/apache/incubator-heron/pull/2905 We saw some topology may encounter the NotSerializableException and the heron-instance crashes. But the user may not be able to analyze why his tuple has NotSerializableException. This PR logs the tuple content to make the diagnosis easy.
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