Github user uce commented on the issue:
https://github.com/apache/flink/pull/2652
We have the `TaskManagerProcessReapingTest` which tests that the
TaskManager process properly exits when the TaskManager actor dies. In
addition, there is `TaskManagerTest#testTerminationOnFatalError`, which tests
that the `FatalError` message terminates the actor.
Do you think we are already covered by this? We can certainly add a process
reaper test variant that sends a `FatalError` message instead of the
`PoisonPill`.
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