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Posted to issues@flink.apache.org by StephanEwen <gi...@git.apache.org> on 2017/10/24 14:44:10 UTC

[GitHub] flink issue #4877: [FLINK-4877] About SourceFunction extends Serializable

Github user StephanEwen commented on the issue:

    https://github.com/apache/flink/pull/4877
  
    Thanks for opening this pull request.
    
    I think it is correct that `SourceFunction` is not required to implement `Serializable`. But I think it does not cause any problems, as far as I know, it has no implication at all on the runtime or behavior.
    
    It does serve as a "reminder" that sources need to be serializable, so it could actually be helpful to keep it.
    
    Given that it makes no difference, should we keep it?


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