hesela.devFailure detector
A failure detector is a component that uses observations to report whether another process or endpoint is suspected of being unavailable.
A suspicion can be mistaken and is not the same as resource fencing. The interpretation belongs to a particular observer and monitoring path. [2]
Cassandra's documented UP/DOWN decisions are local; convicting an endpoint changes routing rather than automatically removing it from membership. Heartbeat observations alone do not establish application progress or durable write completion. [1]
Relations
- related
- phi-accrual-detector, gray-failure, io-fencing, io-timeout