Status

Current state: Accepted

Discussion thread: here

JIRA: 

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1. The sink task is restarted if an exception is caught from the task. The rest of the tasks keep running.
2. After restarting, the sink task restores its state and reconnects to its upstream tasks and continues to process data.
3. The amount of data leading that leads the failed sink from the state of the last completed checkpoint to the state when the sink fails is lost.

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