Github user StephanEwen commented on the pull request:
https://github.com/apache/incubator-flink/pull/254#issuecomment-66348885
I would like to understand more about the BufferFutures. Is there ever a
case where you need a buffer, but not immediately, so you can work with a
future action and keep on going? If yes, then the futures may be a good idea.
If not, they may be a bit of a complicated way to replace a blocking call.
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