Github user senorcarbone commented on the pull request: https://github.com/apache/flink/pull/1668#issuecomment-202818056 Thanks @StephanEwen and @uce for looking into it! I really appreciate it. How about the following: 1. I update this PR with the patch that uses ListState and apply some nice refactorings Gyula made 2. I will also address all your comments and then merge this to master 3. We start working on perfecting stream finalization on loops and backpressure deadlock elimination in seperate PRs right away. These are different problems and we need to address them separately, in my view of course.
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