Failure Detection in Distributed Systems: Heartbeats, Timeouts and the Phi Accrual Detector

Distributed Systems Series — Part 4.4: Fault Tolerance & High Availability The Question That Has No Perfect Answer When a distributed node stops responding, other nodes face a question that cannot be answered with certainty: has this node failed, or is it merely slow? In a single-machine system, this question does not exist. The operating … Read more