Github user tillrohrmann commented on the pull request:
https://github.com/apache/flink/pull/1468#issuecomment-165754886
The idea is to decouple the restart logic from the `JobManager` and to make
it configurable on a per job basis. Different strategies are conceivable. For
instance, what we have right now, a fixed delay restart strategy. Additions
could be an exponential backoff restart strategy or later a scale in/out
restart strategy. Furthermore, this allows to set the delays on a per job basis
which might be relevant for specific SLAs.
But in general it's more like a preliminary step towards the scale in/out
restart strategy, I guess.
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