pnowojski commented on pull request #12292:
URL: https://github.com/apache/flink/pull/12292#issuecomment-634609613
My questions probing in the direction of single channel state handle seems
to be going in a very similar direction as the alternate solution that you
proposed: moving the shared `StreamStateHandle` one level up, but also
additionally encapsulating them into something, for example:
```
Each subtask reports to JM TaskStateSnapshot,
each with zero ore more OperatorSubtaskState,
each with zero or one InFlightDataStateHandle
each with one StreamStateHandle
each with zero or more InputChannelStateHandle and
ResultSubpartitionStateHandle
```
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