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From aljoscha <...@git.apache.org>
Subject [GitHub] flink pull request: [FLINK-2111] Add "stop" signal to cleanly shut...
Date Tue, 08 Sep 2015 14:06:17 GMT
Github user aljoscha commented on the pull request:

    https://github.com/apache/flink/pull/750#issuecomment-138569872
  
    The `cancel` in the SourceFunction interface? As I said, I think it should be non-blocking.
The cancel only sets an internal variable. The source must then respond by exiting from it's
main loop and doing any cleanup in close or after the main-loop in `invoke`. 


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