The Circuit website makes this claim:
The circuit is unique in one respect: Once a circuit cluster is formed, the circuit system itself cannot fail—only individual hosts can. In contrast, comparable systems (like CoreOS, Consul and Mesosphere) can fail if the hardware hosting the system’s own software fails.And yet the CoreOS documentation, referring to Fleet, says this:
Automatic rescheduling of units on machine failureWhich is clearly contradicts the circuit statement. I have a suspicion that Mesosphere, as well as kubernetes, can also reschedule tasks.