[backport] [FLINK-4932] [exec graph] Failing in state RESTARTING only fails the EG if no more restarts are possible #2711
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This PR is a backport of #2710 for the release-1.1 branch.
If in state RESTARTING a failure occurs (
ExecutionGraph.fail
is called), then a new restart attempt is started. Only if the restart strategy no longer allows further restarts or if the thrown exception is of type SuppressRestartsException a job can go from RESTARTING into FAILED.