Github user aljoscha commented on the pull request: https://github.com/apache/flink/pull/937#issuecomment-126296064 I think the changes are ok for now but we need to think hard about how we can unify incremental state, partitioned state, out-of-core state and scale-out/in in the future. This will then probably have to be redone again. What do you think @StephanEwen ?
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