Github user sihuazhou commented on the issue:
https://github.com/apache/flink/pull/5934
Thanks for your comments, @StephanEwen , If I am not misunderstanding , we
don't need to duplicate the serializer now, because we will have a dedicated
optimization for it in the near future, I am `+1` for that. Then, what about
the concurrency problem cause by the `stateTables`, it's an obvious bug that
there could be multi thread access the `stateTab` concurrently, and one of them
could modify the `stateTab`...But so far, no users have reported that problem
yet, maybe that's because most of the user are using the `RocksDBKeyedBackend`
online instead of `HeapKeyedStateBackend`, so I think this is not an urgent
bug, but...it's still a bug, Is it should be fixed for 1.5?
---
