Github user tillrohrmann commented on the pull request:
https://github.com/apache/incubator-flink/pull/149#issuecomment-67422487
Thanks for the feedback Ufuk. I tried to address the points you have
mentioned. Concerning the problem of failing travis builds, it turned out to be
race condition in the execution graph I stumbled upon. Due to this race
condition, it was possible for a job to finish before all vertices have
properly reached a finished state. It is fixed with the latest commit.
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